Home / 135,936,989.40-203,905,484.10-38,898,487.20

Finding the Fourth Proportional to 135,936,989.40, 203,905,484.10 and 38,898,487.20

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Solution

The fourth proportional to 135,936,989.40, 203,905,484.10 and 38,898,487.20 is: 58,347,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,936,989.40 : 203,905,484.10 = 38,898,487.20 : x
  2. Step 2: Convert to fraction form
    135,936,989.40/203,905,484.10 = 38,898,487.20/x
  3. Step 3: Cross multiply
    135,936,989.40x = 203,905,484.10 × 38,898,487.20
  4. Step 4: Simplify right side
    135,936,989.40x = 7,931,614,863,273,654
  5. Step 5: Solve for x
    x = 7,931,614,863,273,654/135,936,989.40
  6. Step 6: Final answer
    x = 58,347,730.80

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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.