Home / 207,828,560.40-311,770,834.20-71,555,715.60

Finding the Fourth Proportional to 207,828,560.40, 311,770,834.20 and 71,555,715.60

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Solution

The fourth proportional to 207,828,560.40, 311,770,834.20 and 71,555,715.60 is: 107,343,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,828,560.40 : 311,770,834.20 = 71,555,715.60 : x
  2. Step 2: Convert to fraction form
    207,828,560.40/311,770,834.20 = 71,555,715.60/x
  3. Step 3: Cross multiply
    207,828,560.40x = 311,770,834.20 × 71,555,715.60
  4. Step 4: Simplify right side
    207,828,560.40x = 22,308,985,144,389,952
  5. Step 5: Solve for x
    x = 22,308,985,144,389,952/207,828,560.40
  6. Step 6: Final answer
    x = 107,343,211.64

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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.