Home / 77,472,001.60-116,208,002.40-65,378,766.40

Finding the Fourth Proportional to 77,472,001.60, 116,208,002.40 and 65,378,766.40

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Solution

The fourth proportional to 77,472,001.60, 116,208,002.40 and 65,378,766.40 is: 98,068,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,472,001.60 : 116,208,002.40 = 65,378,766.40 : x
  2. Step 2: Convert to fraction form
    77,472,001.60/116,208,002.40 = 65,378,766.40/x
  3. Step 3: Cross multiply
    77,472,001.60x = 116,208,002.40 × 65,378,766.40
  4. Step 4: Simplify right side
    77,472,001.60x = 7,597,535,842,720,240
  5. Step 5: Solve for x
    x = 7,597,535,842,720,240/77,472,001.60
  6. Step 6: Final answer
    x = 98,068,149.60

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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.