Home / 472,355,760.40-708,485,801.72-127,344,263.20

Finding the Fourth Proportional to 472,355,760.40, 708,485,801.72 and 127,344,263.20

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Solution

The fourth proportional to 472,355,760.40, 708,485,801.72 and 127,344,263.20 is: 191,003,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,355,760.40 : 708,485,801.72 = 127,344,263.20 : x
  2. Step 2: Convert to fraction form
    472,355,760.40/708,485,801.72 = 127,344,263.20/x
  3. Step 3: Cross multiply
    472,355,760.40x = 708,485,801.72 × 127,344,263.20
  4. Step 4: Simplify right side
    472,355,760.40x = 90,221,602,407,694,704
  5. Step 5: Solve for x
    x = 90,221,602,407,694,704/472,355,760.40
  6. Step 6: Final answer
    x = 191,003,497.73

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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.