Home / 472,825,972.80-709,238,959.20-291,427,444.80

Finding the Fourth Proportional to 472,825,972.80, 709,238,959.20 and 291,427,444.80

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Solution

The fourth proportional to 472,825,972.80, 709,238,959.20 and 291,427,444.80 is: 437,141,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,825,972.80 : 709,238,959.20 = 291,427,444.80 : x
  2. Step 2: Convert to fraction form
    472,825,972.80/709,238,959.20 = 291,427,444.80/x
  3. Step 3: Cross multiply
    472,825,972.80x = 709,238,959.20 × 291,427,444.80
  4. Step 4: Simplify right side
    472,825,972.80x = 206,691,697,632,267,488
  5. Step 5: Solve for x
    x = 206,691,697,632,267,488/472,825,972.80
  6. Step 6: Final answer
    x = 437,141,167.20

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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.