Home / 12,156,680.10-18,235,020.15-10,980,948.90

Finding the Fourth Proportional to 12,156,680.10, 18,235,020.15 and 10,980,948.90

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Solution

The fourth proportional to 12,156,680.10, 18,235,020.15 and 10,980,948.90 is: 16,471,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156,680.10 : 18,235,020.15 = 10,980,948.90 : x
  2. Step 2: Convert to fraction form
    12,156,680.10/18,235,020.15 = 10,980,948.90/x
  3. Step 3: Cross multiply
    12,156,680.10x = 18,235,020.15 × 10,980,948.90
  4. Step 4: Simplify right side
    12,156,680.10x = 200,237,824,457,620.31
  5. Step 5: Solve for x
    x = 200,237,824,457,620.31/12,156,680.10
  6. Step 6: Final answer
    x = 16,471,423.35

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1.5x scale

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.