Home / 82,157,190.56-123,189,682.80-56,278,741.28

Finding the Fourth Proportional to 82,157,190.56, 123,189,682.80 and 56,278,741.28

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Solution

The fourth proportional to 82,157,190.56, 123,189,682.80 and 56,278,741.28 is: 84,386,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,157,190.56 : 123,189,682.80 = 56,278,741.28 : x
  2. Step 2: Convert to fraction form
    82,157,190.56/123,189,682.80 = 56,278,741.28/x
  3. Step 3: Cross multiply
    82,157,190.56x = 123,189,682.80 × 56,278,741.28
  4. Step 4: Simplify right side
    82,157,190.56x = 6,932,960,286,666,466
  5. Step 5: Solve for x
    x = 6,932,960,286,666,466/82,157,190.56
  6. Step 6: Final answer
    x = 84,386,530.74

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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.