Home / 68,796,209.16-103,209,243.66-20,925,909

Finding the Fourth Proportional to 68,796,209.16, 103,209,243.66 and 20,925,909

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Solution

The fourth proportional to 68,796,209.16, 103,209,243.66 and 20,925,909 is: 31,393,404.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,796,209.16 : 103,209,243.66 = 20,925,909 : x
  2. Step 2: Convert to fraction form
    68,796,209.16/103,209,243.66 = 20,925,909/x
  3. Step 3: Cross multiply
    68,796,209.16x = 103,209,243.66 × 20,925,909
  4. Step 4: Simplify right side
    68,796,209.16x = 2,159,747,240,787,986.75
  5. Step 5: Solve for x
    x = 2,159,747,240,787,986.75/68,796,209.16
  6. Step 6: Final answer
    x = 31,393,404.77

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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.