Home / 126,350,862.80-189,400,741.16-87,931,664.30

Finding the Fourth Proportional to 126,350,862.80, 189,400,741.16 and 87,931,664.30

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Solution

The fourth proportional to 126,350,862.80, 189,400,741.16 and 87,931,664.30 is: 131,810,120.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,350,862.80 : 189,400,741.16 = 87,931,664.30 : x
  2. Step 2: Convert to fraction form
    126,350,862.80/189,400,741.16 = 87,931,664.30/x
  3. Step 3: Cross multiply
    126,350,862.80x = 189,400,741.16 × 87,931,664.30
  4. Step 4: Simplify right side
    126,350,862.80x = 16,654,322,389,852,312
  5. Step 5: Solve for x
    x = 16,654,322,389,852,312/126,350,862.80
  6. Step 6: Final answer
    x = 131,810,120.02

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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.