Home / 103,680,409.60-155,520,614.40-98,137,676.80

Finding the Fourth Proportional to 103,680,409.60, 155,520,614.40 and 98,137,676.80

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Solution

The fourth proportional to 103,680,409.60, 155,520,614.40 and 98,137,676.80 is: 147,206,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,409.60 : 155,520,614.40 = 98,137,676.80 : x
  2. Step 2: Convert to fraction form
    103,680,409.60/155,520,614.40 = 98,137,676.80/x
  3. Step 3: Cross multiply
    103,680,409.60x = 155,520,614.40 × 98,137,676.80
  4. Step 4: Simplify right side
    103,680,409.60x = 15,262,431,791,724,626
  5. Step 5: Solve for x
    x = 15,262,431,791,724,626/103,680,409.60
  6. Step 6: Final answer
    x = 147,206,515.20

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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.