Home / 82,739,031.20-124,108,546.80-69,984,447.20

Finding the Fourth Proportional to 82,739,031.20, 124,108,546.80 and 69,984,447.20

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Solution

The fourth proportional to 82,739,031.20, 124,108,546.80 and 69,984,447.20 is: 104,976,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,739,031.20 : 124,108,546.80 = 69,984,447.20 : x
  2. Step 2: Convert to fraction form
    82,739,031.20/124,108,546.80 = 69,984,447.20/x
  3. Step 3: Cross multiply
    82,739,031.20x = 124,108,546.80 × 69,984,447.20
  4. Step 4: Simplify right side
    82,739,031.20x = 8,685,668,040,593,329
  5. Step 5: Solve for x
    x = 8,685,668,040,593,329/82,739,031.20
  6. Step 6: Final answer
    x = 104,976,670.80

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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.