Home / 485,726,849.30-728,545,101.26-136,004,570.70

Finding the Fourth Proportional to 485,726,849.30, 728,545,101.26 and 136,004,570.70

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Solution

The fourth proportional to 485,726,849.30, 728,545,101.26 and 136,004,570.70 is: 203,994,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,726,849.30 : 728,545,101.26 = 136,004,570.70 : x
  2. Step 2: Convert to fraction form
    485,726,849.30/728,545,101.26 = 136,004,570.70/x
  3. Step 3: Cross multiply
    485,726,849.30x = 728,545,101.26 × 136,004,570.70
  4. Step 4: Simplify right side
    485,726,849.30x = 99,085,463,732,454,320
  5. Step 5: Solve for x
    x = 99,085,463,732,454,320/485,726,849.30
  6. Step 6: Final answer
    x = 203,994,207.60

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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.