Home / 126,845,998.80-190,268,998.20-72,426,440.40

Finding the Fourth Proportional to 126,845,998.80, 190,268,998.20 and 72,426,440.40

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Solution

The fourth proportional to 126,845,998.80, 190,268,998.20 and 72,426,440.40 is: 108,639,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,845,998.80 : 190,268,998.20 = 72,426,440.40 : x
  2. Step 2: Convert to fraction form
    126,845,998.80/190,268,998.20 = 72,426,440.40/x
  3. Step 3: Cross multiply
    126,845,998.80x = 190,268,998.20 × 72,426,440.40
  4. Step 4: Simplify right side
    126,845,998.80x = 13,780,506,258,100,008
  5. Step 5: Solve for x
    x = 13,780,506,258,100,008/126,845,998.80
  6. Step 6: Final answer
    x = 108,639,660.60

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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.