Home / 80,010,055.20-120,015,082.80-26,162,810.40

Finding the Fourth Proportional to 80,010,055.20, 120,015,082.80 and 26,162,810.40

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Solution

The fourth proportional to 80,010,055.20, 120,015,082.80 and 26,162,810.40 is: 39,244,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,010,055.20 : 120,015,082.80 = 26,162,810.40 : x
  2. Step 2: Convert to fraction form
    80,010,055.20/120,015,082.80 = 26,162,810.40/x
  3. Step 3: Cross multiply
    80,010,055.20x = 120,015,082.80 × 26,162,810.40
  4. Step 4: Simplify right side
    80,010,055.20x = 3,139,931,856,436,701
  5. Step 5: Solve for x
    x = 3,139,931,856,436,701/80,010,055.20
  6. Step 6: Final answer
    x = 39,244,215.60

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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.