Home / 77,004,693-115,505,951.08-18,712,799.48

Finding the Fourth Proportional to 77,004,693, 115,505,951.08 and 18,712,799.48

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Solution

The fourth proportional to 77,004,693, 115,505,951.08 and 18,712,799.48 is: 28,068,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,004,693 : 115,505,951.08 = 18,712,799.48 : x
  2. Step 2: Convert to fraction form
    77,004,693/115,505,951.08 = 18,712,799.48/x
  3. Step 3: Cross multiply
    77,004,693x = 115,505,951.08 × 18,712,799.48
  4. Step 4: Simplify right side
    77,004,693x = 2,161,439,701,306,729.50
  5. Step 5: Solve for x
    x = 2,161,439,701,306,729.50/77,004,693
  6. Step 6: Final answer
    x = 28,068,934.72

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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.