Home / 68,438,188.50-102,662,006.13-19,916,444.22

Finding the Fourth Proportional to 68,438,188.50, 102,662,006.13 and 19,916,444.22

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Solution

The fourth proportional to 68,438,188.50, 102,662,006.13 and 19,916,444.22 is: 29,876,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,438,188.50 : 102,662,006.13 = 19,916,444.22 : x
  2. Step 2: Convert to fraction form
    68,438,188.50/102,662,006.13 = 19,916,444.22/x
  3. Step 3: Cross multiply
    68,438,188.50x = 102,662,006.13 × 19,916,444.22
  4. Step 4: Simplify right side
    68,438,188.50x = 2,044,662,118,601,442.75
  5. Step 5: Solve for x
    x = 2,044,662,118,601,442.75/68,438,188.50
  6. Step 6: Final answer
    x = 29,876,040.90

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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.