Home / 143,856,741.10-215,537,105.85-67,022,182.30

Finding the Fourth Proportional to 143,856,741.10, 215,537,105.85 and 67,022,182.30

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Solution

The fourth proportional to 143,856,741.10, 215,537,105.85 and 67,022,182.30 is: 100,417,728.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,741.10 : 215,537,105.85 = 67,022,182.30 : x
  2. Step 2: Convert to fraction form
    143,856,741.10/215,537,105.85 = 67,022,182.30/x
  3. Step 3: Cross multiply
    143,856,741.10x = 215,537,105.85 × 67,022,182.30
  4. Step 4: Simplify right side
    143,856,741.10x = 14,445,767,200,693,096
  5. Step 5: Solve for x
    x = 14,445,767,200,693,096/143,856,741.10
  6. Step 6: Final answer
    x = 100,417,728.71

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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.