Home / 77,004,691-115,505,948.08-18,712,797.48

Finding the Fourth Proportional to 77,004,691, 115,505,948.08 and 18,712,797.48

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Solution

The fourth proportional to 77,004,691, 115,505,948.08 and 18,712,797.48 is: 28,068,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,004,691 : 115,505,948.08 = 18,712,797.48 : x
  2. Step 2: Convert to fraction form
    77,004,691/115,505,948.08 = 18,712,797.48/x
  3. Step 3: Cross multiply
    77,004,691x = 115,505,948.08 × 18,712,797.48
  4. Step 4: Simplify right side
    77,004,691x = 2,161,439,414,156,434.75
  5. Step 5: Solve for x
    x = 2,161,439,414,156,434.75/77,004,691
  6. Step 6: Final answer
    x = 28,068,931.72

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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.