Home / 78,131,877.92-107,814,219.95-45,102,767.90

Finding the Fourth Proportional to 78,131,877.92, 107,814,219.95 and 45,102,767.90

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Solution

The fourth proportional to 78,131,877.92, 107,814,219.95 and 45,102,767.90 is: 62,237,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,131,877.92 : 107,814,219.95 = 45,102,767.90 : x
  2. Step 2: Convert to fraction form
    78,131,877.92/107,814,219.95 = 45,102,767.90/x
  3. Step 3: Cross multiply
    78,131,877.92x = 107,814,219.95 × 45,102,767.90
  4. Step 4: Simplify right side
    78,131,877.92x = 4,862,719,738,298,086
  5. Step 5: Solve for x
    x = 4,862,719,738,298,086/78,131,877.92
  6. Step 6: Final answer
    x = 62,237,333.44

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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.