Home / 103,518,788.20-155,146,306.20-55,019,876.20

Finding the Fourth Proportional to 103,518,788.20, 155,146,306.20 and 55,019,876.20

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Solution

The fourth proportional to 103,518,788.20, 155,146,306.20 and 55,019,876.20 is: 82,459,722.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,518,788.20 : 155,146,306.20 = 55,019,876.20 : x
  2. Step 2: Convert to fraction form
    103,518,788.20/155,146,306.20 = 55,019,876.20/x
  3. Step 3: Cross multiply
    103,518,788.20x = 155,146,306.20 × 55,019,876.20
  4. Step 4: Simplify right side
    103,518,788.20x = 8,536,130,560,011,292
  5. Step 5: Solve for x
    x = 8,536,130,560,011,292/103,518,788.20
  6. Step 6: Final answer
    x = 82,459,722.61

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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.