Home / 64,158,709.76-96,199,632.06-20,420,575.70

Finding the Fourth Proportional to 64,158,709.76, 96,199,632.06 and 20,420,575.70

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Solution

The fourth proportional to 64,158,709.76, 96,199,632.06 and 20,420,575.70 is: 30,618,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,158,709.76 : 96,199,632.06 = 20,420,575.70 : x
  2. Step 2: Convert to fraction form
    64,158,709.76/96,199,632.06 = 20,420,575.70/x
  3. Step 3: Cross multiply
    64,158,709.76x = 96,199,632.06 × 20,420,575.70
  4. Step 4: Simplify right side
    64,158,709.76x = 1,964,451,868,793,377
  5. Step 5: Solve for x
    x = 1,964,451,868,793,377/64,158,709.76
  6. Step 6: Final answer
    x = 30,618,631.14

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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.