Home / 80,542,020.08-120,763,585.51-31,300,376.81

Finding the Fourth Proportional to 80,542,020.08, 120,763,585.51 and 31,300,376.81

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Solution

The fourth proportional to 80,542,020.08, 120,763,585.51 and 31,300,376.81 is: 46,931,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,542,020.08 : 120,763,585.51 = 31,300,376.81 : x
  2. Step 2: Convert to fraction form
    80,542,020.08/120,763,585.51 = 31,300,376.81/x
  3. Step 3: Cross multiply
    80,542,020.08x = 120,763,585.51 × 31,300,376.81
  4. Step 4: Simplify right side
    80,542,020.08x = 3,779,945,731,126,873
  5. Step 5: Solve for x
    x = 3,779,945,731,126,873/80,542,020.08
  6. Step 6: Final answer
    x = 46,931,349.96

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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.