Home / 100,675,891.73-138,854,022.93-65,405,061.02

Finding the Fourth Proportional to 100,675,891.73, 138,854,022.93 and 65,405,061.02

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Solution

The fourth proportional to 100,675,891.73, 138,854,022.93 and 65,405,061.02 is: 90,207,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,675,891.73 : 138,854,022.93 = 65,405,061.02 : x
  2. Step 2: Convert to fraction form
    100,675,891.73/138,854,022.93 = 65,405,061.02/x
  3. Step 3: Cross multiply
    100,675,891.73x = 138,854,022.93 × 65,405,061.02
  4. Step 4: Simplify right side
    100,675,891.73x = 9,081,755,842,956,264
  5. Step 5: Solve for x
    x = 9,081,755,842,956,264/100,675,891.73
  6. Step 6: Final answer
    x = 90,207,851.03

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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.