Home / 87,928,295.20-131,892,442.80-42,578,663.20

Finding the Fourth Proportional to 87,928,295.20, 131,892,442.80 and 42,578,663.20

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Solution

The fourth proportional to 87,928,295.20, 131,892,442.80 and 42,578,663.20 is: 63,867,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,928,295.20 : 131,892,442.80 = 42,578,663.20 : x
  2. Step 2: Convert to fraction form
    87,928,295.20/131,892,442.80 = 42,578,663.20/x
  3. Step 3: Cross multiply
    87,928,295.20x = 131,892,442.80 × 42,578,663.20
  4. Step 4: Simplify right side
    87,928,295.20x = 5,615,803,900,606,465
  5. Step 5: Solve for x
    x = 5,615,803,900,606,465/87,928,295.20
  6. Step 6: Final answer
    x = 63,867,994.80

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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.