Home / 126,367,996.80-189,551,995.20-103,409,745.60

Finding the Fourth Proportional to 126,367,996.80, 189,551,995.20 and 103,409,745.60

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Solution

The fourth proportional to 126,367,996.80, 189,551,995.20 and 103,409,745.60 is: 155,114,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,367,996.80 : 189,551,995.20 = 103,409,745.60 : x
  2. Step 2: Convert to fraction form
    126,367,996.80/189,551,995.20 = 103,409,745.60/x
  3. Step 3: Cross multiply
    126,367,996.80x = 189,551,995.20 × 103,409,745.60
  4. Step 4: Simplify right side
    126,367,996.80x = 19,601,523,601,604,420
  5. Step 5: Solve for x
    x = 19,601,523,601,604,420/126,367,996.80
  6. Step 6: Final answer
    x = 155,114,618.40

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1.5x scale

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.