Home / 72,422,451.76-99,940,990.44-39,827,403.76

Finding the Fourth Proportional to 72,422,451.76, 99,940,990.44 and 39,827,403.76

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Solution

The fourth proportional to 72,422,451.76, 99,940,990.44 and 39,827,403.76 is: 54,960,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,422,451.76 : 99,940,990.44 = 39,827,403.76 : x
  2. Step 2: Convert to fraction form
    72,422,451.76/99,940,990.44 = 39,827,403.76/x
  3. Step 3: Cross multiply
    72,422,451.76x = 99,940,990.44 × 39,827,403.76
  4. Step 4: Simplify right side
    72,422,451.76x = 3,980,390,178,428,180
  5. Step 5: Solve for x
    x = 3,980,390,178,428,180/72,422,451.76
  6. Step 6: Final answer
    x = 54,960,721.18

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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.