Home / 78,063,890.32-117,096,097.56-19,771,545.52

Finding the Fourth Proportional to 78,063,890.32, 117,096,097.56 and 19,771,545.52

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Solution

The fourth proportional to 78,063,890.32, 117,096,097.56 and 19,771,545.52 is: 29,657,384.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,063,890.32 : 117,096,097.56 = 19,771,545.52 : x
  2. Step 2: Convert to fraction form
    78,063,890.32/117,096,097.56 = 19,771,545.52/x
  3. Step 3: Cross multiply
    78,063,890.32x = 117,096,097.56 × 19,771,545.52
  4. Step 4: Simplify right side
    78,063,890.32x = 2,315,170,823,121,901
  5. Step 5: Solve for x
    x = 2,315,170,823,121,901/78,063,890.32
  6. Step 6: Final answer
    x = 29,657,384.66

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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.