Home / 126,367,998.80-189,551,998.20-103,409,747.60

Finding the Fourth Proportional to 126,367,998.80, 189,551,998.20 and 103,409,747.60

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Solution

The fourth proportional to 126,367,998.80, 189,551,998.20 and 103,409,747.60 is: 155,114,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,367,998.80 : 189,551,998.20 = 103,409,747.60 : x
  2. Step 2: Convert to fraction form
    126,367,998.80/189,551,998.20 = 103,409,747.60/x
  3. Step 3: Cross multiply
    126,367,998.80x = 189,551,998.20 × 103,409,747.60
  4. Step 4: Simplify right side
    126,367,998.80x = 19,601,524,290,937,652
  5. Step 5: Solve for x
    x = 19,601,524,290,937,652/126,367,998.80
  6. Step 6: Final answer
    x = 155,114,621.40

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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.