Home / 79,728,400.80-119,592,601.20-68,249,275.20

Finding the Fourth Proportional to 79,728,400.80, 119,592,601.20 and 68,249,275.20

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Solution

The fourth proportional to 79,728,400.80, 119,592,601.20 and 68,249,275.20 is: 102,373,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,728,400.80 : 119,592,601.20 = 68,249,275.20 : x
  2. Step 2: Convert to fraction form
    79,728,400.80/119,592,601.20 = 68,249,275.20/x
  3. Step 3: Cross multiply
    79,728,400.80x = 119,592,601.20 × 68,249,275.20
  4. Step 4: Simplify right side
    79,728,400.80x = 8,162,108,351,182,651
  5. Step 5: Solve for x
    x = 8,162,108,351,182,651/79,728,400.80
  6. Step 6: Final answer
    x = 102,373,912.80

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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.