Home / 65,428,780-98,144,187.20-19,375,307.68

Finding the Fourth Proportional to 65,428,780, 98,144,187.20 and 19,375,307.68

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Solution

The fourth proportional to 65,428,780, 98,144,187.20 and 19,375,307.68 is: 29,063,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,428,780 : 98,144,187.20 = 19,375,307.68 : x
  2. Step 2: Convert to fraction form
    65,428,780/98,144,187.20 = 19,375,307.68/x
  3. Step 3: Cross multiply
    65,428,780x = 98,144,187.20 × 19,375,307.68
  4. Step 4: Simplify right side
    65,428,780x = 1,901,573,824,003,517.75
  5. Step 5: Solve for x
    x = 1,901,573,824,003,517.75/65,428,780
  6. Step 6: Final answer
    x = 29,063,262.74

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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.