Home / 72,171,470.40-108,257,205.60-71,533,741.20

Finding the Fourth Proportional to 72,171,470.40, 108,257,205.60 and 71,533,741.20

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Solution

The fourth proportional to 72,171,470.40, 108,257,205.60 and 71,533,741.20 is: 107,300,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,470.40 : 108,257,205.60 = 71,533,741.20 : x
  2. Step 2: Convert to fraction form
    72,171,470.40/108,257,205.60 = 71,533,741.20/x
  3. Step 3: Cross multiply
    72,171,470.40x = 108,257,205.60 × 71,533,741.20
  4. Step 4: Simplify right side
    72,171,470.40x = 7,744,042,928,425,591
  5. Step 5: Solve for x
    x = 7,744,042,928,425,591/72,171,470.40
  6. Step 6: Final answer
    x = 107,300,611.80

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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.