Home / 103,584,005.60-155,376,008.40-65,288,760.80

Finding the Fourth Proportional to 103,584,005.60, 155,376,008.40 and 65,288,760.80

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Solution

The fourth proportional to 103,584,005.60, 155,376,008.40 and 65,288,760.80 is: 97,933,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,584,005.60 : 155,376,008.40 = 65,288,760.80 : x
  2. Step 2: Convert to fraction form
    103,584,005.60/155,376,008.40 = 65,288,760.80/x
  3. Step 3: Cross multiply
    103,584,005.60x = 155,376,008.40 × 65,288,760.80
  4. Step 4: Simplify right side
    103,584,005.60x = 10,144,307,046,486,390
  5. Step 5: Solve for x
    x = 10,144,307,046,486,390/103,584,005.60
  6. Step 6: Final answer
    x = 97,933,141.20

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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.