Home / 82,157,194.56-123,189,688.80-56,278,745.28

Finding the Fourth Proportional to 82,157,194.56, 123,189,688.80 and 56,278,745.28

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Solution

The fourth proportional to 82,157,194.56, 123,189,688.80 and 56,278,745.28 is: 84,386,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,157,194.56 : 123,189,688.80 = 56,278,745.28 : x
  2. Step 2: Convert to fraction form
    82,157,194.56/123,189,688.80 = 56,278,745.28/x
  3. Step 3: Cross multiply
    82,157,194.56x = 123,189,688.80 × 56,278,745.28
  4. Step 4: Simplify right side
    82,157,194.56x = 6,932,961,117,097,669
  5. Step 5: Solve for x
    x = 6,932,961,117,097,669/82,157,194.56
  6. Step 6: Final answer
    x = 84,386,536.74

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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.