Home / 120,267,831.29-165,969,607.20-65,263,687.79

Finding the Fourth Proportional to 120,267,831.29, 165,969,607.20 and 65,263,687.79

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Solution

The fourth proportional to 120,267,831.29, 165,969,607.20 and 65,263,687.79 is: 90,063,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,267,831.29 : 165,969,607.20 = 65,263,687.79 : x
  2. Step 2: Convert to fraction form
    120,267,831.29/165,969,607.20 = 65,263,687.79/x
  3. Step 3: Cross multiply
    120,267,831.29x = 165,969,607.20 × 65,263,687.79
  4. Step 4: Simplify right side
    120,267,831.29x = 10,831,788,626,788,728
  5. Step 5: Solve for x
    x = 10,831,788,626,788,728/120,267,831.29
  6. Step 6: Final answer
    x = 90,063,889.16

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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.