Home / 72,171,677.20-108,257,515.80-35,766,000.40

Finding the Fourth Proportional to 72,171,677.20, 108,257,515.80 and 35,766,000.40

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Solution

The fourth proportional to 72,171,677.20, 108,257,515.80 and 35,766,000.40 is: 53,649,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,677.20 : 108,257,515.80 = 35,766,000.40 : x
  2. Step 2: Convert to fraction form
    72,171,677.20/108,257,515.80 = 35,766,000.40/x
  3. Step 3: Cross multiply
    72,171,677.20x = 108,257,515.80 × 35,766,000.40
  4. Step 4: Simplify right side
    72,171,677.20x = 3,871,938,353,405,806
  5. Step 5: Solve for x
    x = 3,871,938,353,405,806/72,171,677.20
  6. Step 6: Final answer
    x = 53,649,000.60

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Similar ratio
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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.