Home / 866,821,497.40-1,300,232,246.10-499,489,478.20

Finding the Fourth Proportional to 866,821,497.40, 1,300,232,246.10 and 499,489,478.20

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Solution

The fourth proportional to 866,821,497.40, 1,300,232,246.10 and 499,489,478.20 is: 749,234,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,821,497.40 : 1,300,232,246.10 = 499,489,478.20 : x
  2. Step 2: Convert to fraction form
    866,821,497.40/1,300,232,246.10 = 499,489,478.20/x
  3. Step 3: Cross multiply
    866,821,497.40x = 1,300,232,246.10 × 499,489,478.20
  4. Step 4: Simplify right side
    866,821,497.40x = 649,452,326,143,302,912
  5. Step 5: Solve for x
    x = 649,452,326,143,302,912/866,821,497.40
  6. Step 6: Final answer
    x = 749,234,217.30

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Double scale
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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.