Home / 1,227,600,120.89-1,694,088,846.42-663,084,999.60

Finding the Fourth Proportional to 1,227,600,120.89, 1,694,088,846.42 and 663,084,999.60

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Solution

The fourth proportional to 1,227,600,120.89, 1,694,088,846.42 and 663,084,999.60 is: 915,057,666.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,600,120.89 : 1,694,088,846.42 = 663,084,999.60 : x
  2. Step 2: Convert to fraction form
    1,227,600,120.89/1,694,088,846.42 = 663,084,999.60/x
  3. Step 3: Cross multiply
    1,227,600,120.89x = 1,694,088,846.42 × 663,084,999.60
  4. Step 4: Simplify right side
    1,227,600,120.89x = 1,123,324,902,048,250,368
  5. Step 5: Solve for x
    x = 1,123,324,902,048,250,368/1,227,600,120.89
  6. Step 6: Final answer
    x = 915,057,666.53

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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.