Home / 71,165,018.61-98,206,999.61-39,802,992.72

Finding the Fourth Proportional to 71,165,018.61, 98,206,999.61 and 39,802,992.72

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Solution

The fourth proportional to 71,165,018.61, 98,206,999.61 and 39,802,992.72 is: 54,927,723.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,165,018.61 : 98,206,999.61 = 39,802,992.72 : x
  2. Step 2: Convert to fraction form
    71,165,018.61/98,206,999.61 = 39,802,992.72/x
  3. Step 3: Cross multiply
    71,165,018.61x = 98,206,999.61 × 39,802,992.72
  4. Step 4: Simplify right side
    71,165,018.61x = 3,908,932,490,529,872.50
  5. Step 5: Solve for x
    x = 3,908,932,490,529,872.50/71,165,018.61
  6. Step 6: Final answer
    x = 54,927,723.86

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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.