Home / 663,860,180.40-995,790,270.60-319,486,412.40

Finding the Fourth Proportional to 663,860,180.40, 995,790,270.60 and 319,486,412.40

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Solution

The fourth proportional to 663,860,180.40, 995,790,270.60 and 319,486,412.40 is: 479,229,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,860,180.40 : 995,790,270.60 = 319,486,412.40 : x
  2. Step 2: Convert to fraction form
    663,860,180.40/995,790,270.60 = 319,486,412.40/x
  3. Step 3: Cross multiply
    663,860,180.40x = 995,790,270.60 × 319,486,412.40
  4. Step 4: Simplify right side
    663,860,180.40x = 318,141,461,056,819,200
  5. Step 5: Solve for x
    x = 318,141,461,056,819,200/663,860,180.40
  6. Step 6: Final answer
    x = 479,229,618.60

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Similar ratio
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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.