Home / 137,586,642.72-189,863,874.32-74,862,998.88

Finding the Fourth Proportional to 137,586,642.72, 189,863,874.32 and 74,862,998.88

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Solution

The fourth proportional to 137,586,642.72, 189,863,874.32 and 74,862,998.88 is: 103,307,841.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,586,642.72 : 189,863,874.32 = 74,862,998.88 : x
  2. Step 2: Convert to fraction form
    137,586,642.72/189,863,874.32 = 74,862,998.88/x
  3. Step 3: Cross multiply
    137,586,642.72x = 189,863,874.32 × 74,862,998.88
  4. Step 4: Simplify right side
    137,586,642.72x = 14,213,779,010,570,620
  5. Step 5: Solve for x
    x = 14,213,779,010,570,620/137,586,642.72
  6. Step 6: Final answer
    x = 103,307,841.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.