Home / 103,520,260.90-155,280,391.35-31,707,345.70

Finding the Fourth Proportional to 103,520,260.90, 155,280,391.35 and 31,707,345.70

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Solution

The fourth proportional to 103,520,260.90, 155,280,391.35 and 31,707,345.70 is: 47,561,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,520,260.90 : 155,280,391.35 = 31,707,345.70 : x
  2. Step 2: Convert to fraction form
    103,520,260.90/155,280,391.35 = 31,707,345.70/x
  3. Step 3: Cross multiply
    103,520,260.90x = 155,280,391.35 × 31,707,345.70
  4. Step 4: Simplify right side
    103,520,260.90x = 4,923,529,048,965,739
  5. Step 5: Solve for x
    x = 4,923,529,048,965,739/103,520,260.90
  6. Step 6: Final answer
    x = 47,561,018.55

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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.