Home / 126,820,003.60-190,288,987.80-66,304,061.20

Finding the Fourth Proportional to 126,820,003.60, 190,288,987.80 and 66,304,061.20

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Solution

The fourth proportional to 126,820,003.60, 190,288,987.80 and 66,304,061.20 is: 99,486,928.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,820,003.60 : 190,288,987.80 = 66,304,061.20 : x
  2. Step 2: Convert to fraction form
    126,820,003.60/190,288,987.80 = 66,304,061.20/x
  3. Step 3: Cross multiply
    126,820,003.60x = 190,288,987.80 × 66,304,061.20
  4. Step 4: Simplify right side
    126,820,003.60x = 12,616,932,692,777,254
  5. Step 5: Solve for x
    x = 12,616,932,692,777,254/126,820,003.60
  6. Step 6: Final answer
    x = 99,486,928.99

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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.