Home / 71,504,636.28-107,257,950.98-20,386,655.16

Finding the Fourth Proportional to 71,504,636.28, 107,257,950.98 and 20,386,655.16

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Solution

The fourth proportional to 71,504,636.28, 107,257,950.98 and 20,386,655.16 is: 30,580,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,504,636.28 : 107,257,950.98 = 20,386,655.16 : x
  2. Step 2: Convert to fraction form
    71,504,636.28/107,257,950.98 = 20,386,655.16/x
  3. Step 3: Cross multiply
    71,504,636.28x = 107,257,950.98 × 20,386,655.16
  4. Step 4: Simplify right side
    71,504,636.28x = 2,186,630,859,695,510.75
  5. Step 5: Solve for x
    x = 2,186,630,859,695,510.75/71,504,636.28
  6. Step 6: Final answer
    x = 30,580,266.87

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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.