Home / 644,532,618.80-966,798,928.20-207,847,549.10

Finding the Fourth Proportional to 644,532,618.80, 966,798,928.20 and 207,847,549.10

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Solution

The fourth proportional to 644,532,618.80, 966,798,928.20 and 207,847,549.10 is: 311,771,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,532,618.80 : 966,798,928.20 = 207,847,549.10 : x
  2. Step 2: Convert to fraction form
    644,532,618.80/966,798,928.20 = 207,847,549.10/x
  3. Step 3: Cross multiply
    644,532,618.80x = 966,798,928.20 × 207,847,549.10
  4. Step 4: Simplify right side
    644,532,618.80x = 200,946,787,698,876,864
  5. Step 5: Solve for x
    x = 200,946,787,698,876,864/644,532,618.80
  6. Step 6: Final answer
    x = 311,771,323.65

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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.