Home / 128,042,901.64-176,699,212.89-70,096,149.64

Finding the Fourth Proportional to 128,042,901.64, 176,699,212.89 and 70,096,149.64

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Solution

The fourth proportional to 128,042,901.64, 176,699,212.89 and 70,096,149.64 is: 96,732,691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,042,901.64 : 176,699,212.89 = 70,096,149.64 : x
  2. Step 2: Convert to fraction form
    128,042,901.64/176,699,212.89 = 70,096,149.64/x
  3. Step 3: Cross multiply
    128,042,901.64x = 176,699,212.89 × 70,096,149.64
  4. Step 4: Simplify right side
    128,042,901.64x = 12,385,934,468,007,656
  5. Step 5: Solve for x
    x = 12,385,934,468,007,656/128,042,901.64
  6. Step 6: Final answer
    x = 96,732,691.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.