Home / 1,227,600,191.08-1,694,088,943.37-663,085,070.10

Finding the Fourth Proportional to 1,227,600,191.08, 1,694,088,943.37 and 663,085,070.10

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Solution

The fourth proportional to 1,227,600,191.08, 1,694,088,943.37 and 663,085,070.10 is: 915,057,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,600,191.08 : 1,694,088,943.37 = 663,085,070.10 : x
  2. Step 2: Convert to fraction form
    1,227,600,191.08/1,694,088,943.37 = 663,085,070.10/x
  3. Step 3: Cross multiply
    1,227,600,191.08x = 1,694,088,943.37 × 663,085,070.10
  4. Step 4: Simplify right side
    1,227,600,191.08x = 1,123,325,085,770,131,328
  5. Step 5: Solve for x
    x = 1,123,325,085,770,131,328/1,227,600,191.08
  6. Step 6: Final answer
    x = 915,057,763.87

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Half scale
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Double scale
Find fourth proportional to 1,227,600,192.08, 1,694,088,944.75 and 663,085,071.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.