Home / 80,931,385.36-111,678,560.22-45,647,246.08

Finding the Fourth Proportional to 80,931,385.36, 111,678,560.22 and 45,647,246.08

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Solution

The fourth proportional to 80,931,385.36, 111,678,560.22 and 45,647,246.08 is: 62,989,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931,385.36 : 111,678,560.22 = 45,647,246.08 : x
  2. Step 2: Convert to fraction form
    80,931,385.36/111,678,560.22 = 45,647,246.08/x
  3. Step 3: Cross multiply
    80,931,385.36x = 111,678,560.22 × 45,647,246.08
  4. Step 4: Simplify right side
    80,931,385.36x = 5,097,818,720,222,439
  5. Step 5: Solve for x
    x = 5,097,818,720,222,439/80,931,385.36
  6. Step 6: Final answer
    x = 62,989,391.54

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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.