Home / 126,703,722.80-189,866,627.40-107,430,129.20

Finding the Fourth Proportional to 126,703,722.80, 189,866,627.40 and 107,430,129.20

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Solution

The fourth proportional to 126,703,722.80, 189,866,627.40 and 107,430,129.20 is: 160,984,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,703,722.80 : 189,866,627.40 = 107,430,129.20 : x
  2. Step 2: Convert to fraction form
    126,703,722.80/189,866,627.40 = 107,430,129.20/x
  3. Step 3: Cross multiply
    126,703,722.80x = 189,866,627.40 × 107,430,129.20
  4. Step 4: Simplify right side
    126,703,722.80x = 20,397,396,312,350,260
  5. Step 5: Solve for x
    x = 20,397,396,312,350,260/126,703,722.80
  6. Step 6: Final answer
    x = 160,984,980.25

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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.