Home / 65,655,309.69-90,615,578.18-38,169,181.17

Finding the Fourth Proportional to 65,655,309.69, 90,615,578.18 and 38,169,181.17

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Solution

The fourth proportional to 65,655,309.69, 90,615,578.18 and 38,169,181.17 is: 52,680,010.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,655,309.69 : 90,615,578.18 = 38,169,181.17 : x
  2. Step 2: Convert to fraction form
    65,655,309.69/90,615,578.18 = 38,169,181.17/x
  3. Step 3: Cross multiply
    65,655,309.69x = 90,615,578.18 × 38,169,181.17
  4. Step 4: Simplify right side
    65,655,309.69x = 3,458,722,420,376,719.50
  5. Step 5: Solve for x
    x = 3,458,722,420,376,719.50/65,655,309.69
  6. Step 6: Final answer
    x = 52,680,010.75

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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.