Home / 66,530,334.90-99,870,151.95-51,451,115.70

Finding the Fourth Proportional to 66,530,334.90, 99,870,151.95 and 51,451,115.70

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Solution

The fourth proportional to 66,530,334.90, 99,870,151.95 and 51,451,115.70 is: 77,234,403.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,530,334.90 : 99,870,151.95 = 51,451,115.70 : x
  2. Step 2: Convert to fraction form
    66,530,334.90/99,870,151.95 = 51,451,115.70/x
  3. Step 3: Cross multiply
    66,530,334.90x = 99,870,151.95 × 51,451,115.70
  4. Step 4: Simplify right side
    66,530,334.90x = 5,138,430,742,956,031
  5. Step 5: Solve for x
    x = 5,138,430,742,956,031/66,530,334.90
  6. Step 6: Final answer
    x = 77,234,403.68

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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.