Home / 77,278,656.24-106,647,103.17-42,472,580.40

Finding the Fourth Proportional to 77,278,656.24, 106,647,103.17 and 42,472,580.40

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Solution

The fourth proportional to 77,278,656.24, 106,647,103.17 and 42,472,580.40 is: 58,613,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,278,656.24 : 106,647,103.17 = 42,472,580.40 : x
  2. Step 2: Convert to fraction form
    77,278,656.24/106,647,103.17 = 42,472,580.40/x
  3. Step 3: Cross multiply
    77,278,656.24x = 106,647,103.17 × 42,472,580.40
  4. Step 4: Simplify right side
    77,278,656.24x = 4,529,577,663,814,920
  5. Step 5: Solve for x
    x = 4,529,577,663,814,920/77,278,656.24
  6. Step 6: Final answer
    x = 58,613,566.59

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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.