Home / 77,555,068.92-107,024,717.52-42,750,997.74

Finding the Fourth Proportional to 77,555,068.92, 107,024,717.52 and 42,750,997.74

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Solution

The fourth proportional to 77,555,068.92, 107,024,717.52 and 42,750,997.74 is: 58,995,672.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,555,068.92 : 107,024,717.52 = 42,750,997.74 : x
  2. Step 2: Convert to fraction form
    77,555,068.92/107,024,717.52 = 42,750,997.74/x
  3. Step 3: Cross multiply
    77,555,068.92x = 107,024,717.52 × 42,750,997.74
  4. Step 4: Simplify right side
    77,555,068.92x = 4,575,413,456,821,658
  5. Step 5: Solve for x
    x = 4,575,413,456,821,658/77,555,068.92
  6. Step 6: Final answer
    x = 58,995,672.63

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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.