Home / 103,680,030.80-155,520,046.20-99,698,718.80

Finding the Fourth Proportional to 103,680,030.80, 155,520,046.20 and 99,698,718.80

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Solution

The fourth proportional to 103,680,030.80, 155,520,046.20 and 99,698,718.80 is: 149,548,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,030.80 : 155,520,046.20 = 99,698,718.80 : x
  2. Step 2: Convert to fraction form
    103,680,030.80/155,520,046.20 = 99,698,718.80/x
  3. Step 3: Cross multiply
    103,680,030.80x = 155,520,046.20 × 99,698,718.80
  4. Step 4: Simplify right side
    103,680,030.80x = 15,505,149,353,856,806
  5. Step 5: Solve for x
    x = 15,505,149,353,856,806/103,680,030.80
  6. Step 6: Final answer
    x = 149,548,078.20

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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.