Home / 137,070,575.61-189,155,630.75-78,332,567.01

Finding the Fourth Proportional to 137,070,575.61, 189,155,630.75 and 78,332,567.01

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Solution

The fourth proportional to 137,070,575.61, 189,155,630.75 and 78,332,567.01 is: 108,097,934.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,070,575.61 : 189,155,630.75 = 78,332,567.01 : x
  2. Step 2: Convert to fraction form
    137,070,575.61/189,155,630.75 = 78,332,567.01/x
  3. Step 3: Cross multiply
    137,070,575.61x = 189,155,630.75 × 78,332,567.01
  4. Step 4: Simplify right side
    137,070,575.61x = 14,817,046,120,651,530
  5. Step 5: Solve for x
    x = 14,817,046,120,651,530/137,070,575.61
  6. Step 6: Final answer
    x = 108,097,934.62

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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.