Home / 747,387,618.30-1,121,081,427.45-709,974,171.90

Finding the Fourth Proportional to 747,387,618.30, 1,121,081,427.45 and 709,974,171.90

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Solution

The fourth proportional to 747,387,618.30, 1,121,081,427.45 and 709,974,171.90 is: 1,064,961,257.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,387,618.30 : 1,121,081,427.45 = 709,974,171.90 : x
  2. Step 2: Convert to fraction form
    747,387,618.30/1,121,081,427.45 = 709,974,171.90/x
  3. Step 3: Cross multiply
    747,387,618.30x = 1,121,081,427.45 × 709,974,171.90
  4. Step 4: Simplify right side
    747,387,618.30x = 795,938,858,086,283,648
  5. Step 5: Solve for x
    x = 795,938,858,086,283,648/747,387,618.30
  6. Step 6: Final answer
    x = 1,064,961,257.85

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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.