Home / 91,770,831.20-137,676,985.64-30,359,844.88

Finding the Fourth Proportional to 91,770,831.20, 137,676,985.64 and 30,359,844.88

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Solution

The fourth proportional to 91,770,831.20, 137,676,985.64 and 30,359,844.88 is: 45,546,628.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,770,831.20 : 137,676,985.64 = 30,359,844.88 : x
  2. Step 2: Convert to fraction form
    91,770,831.20/137,676,985.64 = 30,359,844.88/x
  3. Step 3: Cross multiply
    91,770,831.20x = 137,676,985.64 × 30,359,844.88
  4. Step 4: Simplify right side
    91,770,831.20x = 4,179,851,927,576,387
  5. Step 5: Solve for x
    x = 4,179,851,927,576,387/91,770,831.20
  6. Step 6: Final answer
    x = 45,546,628.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.