Home / 103,648,020.80-155,472,031.20-87,523,707.20

Finding the Fourth Proportional to 103,648,020.80, 155,472,031.20 and 87,523,707.20

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Solution

The fourth proportional to 103,648,020.80, 155,472,031.20 and 87,523,707.20 is: 131,285,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,648,020.80 : 155,472,031.20 = 87,523,707.20 : x
  2. Step 2: Convert to fraction form
    103,648,020.80/155,472,031.20 = 87,523,707.20/x
  3. Step 3: Cross multiply
    103,648,020.80x = 155,472,031.20 × 87,523,707.20
  4. Step 4: Simplify right side
    103,648,020.80x = 13,607,488,536,538,064
  5. Step 5: Solve for x
    x = 13,607,488,536,538,064/103,648,020.80
  6. Step 6: Final answer
    x = 131,285,560.80

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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.