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Finding the Fourth Proportional to 488,448,532.80, 732,672,799.20 and 485,047,310.40

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Solution

The fourth proportional to 488,448,532.80, 732,672,799.20 and 485,047,310.40 is: 727,570,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,448,532.80 : 732,672,799.20 = 485,047,310.40 : x
  2. Step 2: Convert to fraction form
    488,448,532.80/732,672,799.20 = 485,047,310.40/x
  3. Step 3: Cross multiply
    488,448,532.80x = 732,672,799.20 × 485,047,310.40
  4. Step 4: Simplify right side
    488,448,532.80x = 355,380,970,655,199,296
  5. Step 5: Solve for x
    x = 355,380,970,655,199,296/488,448,532.80
  6. Step 6: Final answer
    x = 727,570,965.60

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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.