Home / 12,310,371.83-16,990,422.65-7,156,722.74

Finding the Fourth Proportional to 12,310,371.83, 16,990,422.65 and 7,156,722.74

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Solution

The fourth proportional to 12,310,371.83, 16,990,422.65 and 7,156,722.74 is: 9,877,503.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310,371.83 : 16,990,422.65 = 7,156,722.74 : x
  2. Step 2: Convert to fraction form
    12,310,371.83/16,990,422.65 = 7,156,722.74/x
  3. Step 3: Cross multiply
    12,310,371.83x = 16,990,422.65 × 7,156,722.74
  4. Step 4: Simplify right side
    12,310,371.83x = 121,595,744,087,824.62
  5. Step 5: Solve for x
    x = 121,595,744,087,824.62/12,310,371.83
  6. Step 6: Final answer
    x = 9,877,503.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.