Home / 72,039,449.43-99,581,987.93-64,275,908.36

Finding the Fourth Proportional to 72,039,449.43, 99,581,987.93 and 64,275,908.36

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Solution

The fourth proportional to 72,039,449.43, 99,581,987.93 and 64,275,908.36 is: 88,850,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,039,449.43 : 99,581,987.93 = 64,275,908.36 : x
  2. Step 2: Convert to fraction form
    72,039,449.43/99,581,987.93 = 64,275,908.36/x
  3. Step 3: Cross multiply
    72,039,449.43x = 99,581,987.93 × 64,275,908.36
  4. Step 4: Simplify right side
    72,039,449.43x = 6,400,722,729,676,016
  5. Step 5: Solve for x
    x = 6,400,722,729,676,016/72,039,449.43
  6. Step 6: Final answer
    x = 88,850,244.97

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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.