Home / 808,291,240.87-1,212,431,773.65-434,974,976.11

Finding the Fourth Proportional to 808,291,240.87, 1,212,431,773.65 and 434,974,976.11

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Solution

The fourth proportional to 808,291,240.87, 1,212,431,773.65 and 434,974,976.11 is: 652,459,726.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,291,240.87 : 1,212,431,773.65 = 434,974,976.11 : x
  2. Step 2: Convert to fraction form
    808,291,240.87/1,212,431,773.65 = 434,974,976.11/x
  3. Step 3: Cross multiply
    808,291,240.87x = 1,212,431,773.65 × 434,974,976.11
  4. Step 4: Simplify right side
    808,291,240.87x = 527,377,481,773,207,744
  5. Step 5: Solve for x
    x = 527,377,481,773,207,744/808,291,240.87
  6. Step 6: Final answer
    x = 652,459,726.28

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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.