Home / 103,520,260.40-155,280,390.60-31,707,345.20

Finding the Fourth Proportional to 103,520,260.40, 155,280,390.60 and 31,707,345.20

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Solution

The fourth proportional to 103,520,260.40, 155,280,390.60 and 31,707,345.20 is: 47,561,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,520,260.40 : 155,280,390.60 = 31,707,345.20 : x
  2. Step 2: Convert to fraction form
    103,520,260.40/155,280,390.60 = 31,707,345.20/x
  3. Step 3: Cross multiply
    103,520,260.40x = 155,280,390.60 × 31,707,345.20
  4. Step 4: Simplify right side
    103,520,260.40x = 4,923,528,947,545,035
  5. Step 5: Solve for x
    x = 4,923,528,947,545,035/103,520,260.40
  6. Step 6: Final answer
    x = 47,561,017.80

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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.