Home / 20,503,492.90-30,734,244.15-11,979,441.70

Finding the Fourth Proportional to 20,503,492.90, 30,734,244.15 and 11,979,441.70

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Solution

The fourth proportional to 20,503,492.90, 30,734,244.15 and 11,979,441.70 is: 17,956,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503,492.90 : 30,734,244.15 = 11,979,441.70 : x
  2. Step 2: Convert to fraction form
    20,503,492.90/30,734,244.15 = 11,979,441.70/x
  3. Step 3: Cross multiply
    20,503,492.90x = 30,734,244.15 × 11,979,441.70
  4. Step 4: Simplify right side
    20,503,492.90x = 368,179,085,988,491
  5. Step 5: Solve for x
    x = 368,179,085,988,491/20,503,492.90
  6. Step 6: Final answer
    x = 17,956,895.82

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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.