Home / 126,587,075.20-189,880,612.80-121,485,241.60

Finding the Fourth Proportional to 126,587,075.20, 189,880,612.80 and 121,485,241.60

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Solution

The fourth proportional to 126,587,075.20, 189,880,612.80 and 121,485,241.60 is: 182,227,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,587,075.20 : 189,880,612.80 = 121,485,241.60 : x
  2. Step 2: Convert to fraction form
    126,587,075.20/189,880,612.80 = 121,485,241.60/x
  3. Step 3: Cross multiply
    126,587,075.20x = 189,880,612.80 × 121,485,241.60
  4. Step 4: Simplify right side
    126,587,075.20x = 23,067,692,121,164,052
  5. Step 5: Solve for x
    x = 23,067,692,121,164,052/126,587,075.20
  6. Step 6: Final answer
    x = 182,227,862.40

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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.