Home / 10,689,981.60-16,034,972.40-3,117,712.80

Finding the Fourth Proportional to 10,689,981.60, 16,034,972.40 and 3,117,712.80

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Solution

The fourth proportional to 10,689,981.60, 16,034,972.40 and 3,117,712.80 is: 4,676,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689,981.60 : 16,034,972.40 = 3,117,712.80 : x
  2. Step 2: Convert to fraction form
    10,689,981.60/16,034,972.40 = 3,117,712.80/x
  3. Step 3: Cross multiply
    10,689,981.60x = 16,034,972.40 × 3,117,712.80
  4. Step 4: Simplify right side
    10,689,981.60x = 49,992,438,699,126.72
  5. Step 5: Solve for x
    x = 49,992,438,699,126.72/10,689,981.60
  6. Step 6: Final answer
    x = 4,676,569.20

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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.