Home / 747,387,622.80-1,121,081,434.20-709,974,176.40

Finding the Fourth Proportional to 747,387,622.80, 1,121,081,434.20 and 709,974,176.40

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Solution

The fourth proportional to 747,387,622.80, 1,121,081,434.20 and 709,974,176.40 is: 1,064,961,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,387,622.80 : 1,121,081,434.20 = 709,974,176.40 : x
  2. Step 2: Convert to fraction form
    747,387,622.80/1,121,081,434.20 = 709,974,176.40/x
  3. Step 3: Cross multiply
    747,387,622.80x = 1,121,081,434.20 × 709,974,176.40
  4. Step 4: Simplify right side
    747,387,622.80x = 795,938,867,923,475,840
  5. Step 5: Solve for x
    x = 795,938,867,923,475,840/747,387,622.80
  6. Step 6: Final answer
    x = 1,064,961,264.60

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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.