Home / 138,384,614.48-190,974,753.79-76,508,938.85

Finding the Fourth Proportional to 138,384,614.48, 190,974,753.79 and 76,508,938.85

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Solution

The fourth proportional to 138,384,614.48, 190,974,753.79 and 76,508,938.85 is: 105,584,539.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,384,614.48 : 190,974,753.79 = 76,508,938.85 : x
  2. Step 2: Convert to fraction form
    138,384,614.48/190,974,753.79 = 76,508,938.85/x
  3. Step 3: Cross multiply
    138,384,614.48x = 190,974,753.79 × 76,508,938.85
  4. Step 4: Simplify right side
    138,384,614.48x = 14,611,275,759,827,910
  5. Step 5: Solve for x
    x = 14,611,275,759,827,910/138,384,614.48
  6. Step 6: Final answer
    x = 105,584,539.25

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