Home / 1,009,216,232.20-1,513,824,348.30-272,284,712.20

Finding the Fourth Proportional to 1,009,216,232.20, 1,513,824,348.30 and 272,284,712.20

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Solution

The fourth proportional to 1,009,216,232.20, 1,513,824,348.30 and 272,284,712.20 is: 408,427,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,216,232.20 : 1,513,824,348.30 = 272,284,712.20 : x
  2. Step 2: Convert to fraction form
    1,009,216,232.20/1,513,824,348.30 = 272,284,712.20/x
  3. Step 3: Cross multiply
    1,009,216,232.20x = 1,513,824,348.30 × 272,284,712.20
  4. Step 4: Simplify right side
    1,009,216,232.20x = 412,191,226,998,218,048
  5. Step 5: Solve for x
    x = 412,191,226,998,218,048/1,009,216,232.20
  6. Step 6: Final answer
    x = 408,427,068.30

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Half scale
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Double scale
Find fourth proportional to 1,009,216,233.20, 1,513,824,349.80 and 272,284,713.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.