Home / 518,200,250,422.85-777,406,390,114.50-178,195,271,661.60

Finding the Fourth Proportional to 518,200,250,422.85, 777,406,390,114.50 and 178,195,271,661.60

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Solution

The fourth proportional to 518,200,250,422.85, 777,406,390,114.50 and 178,195,271,661.60 is: 267,329,363,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,200,250,422.85 : 777,406,390,114.50 = 178,195,271,661.60 : x
  2. Step 2: Convert to fraction form
    518,200,250,422.85/777,406,390,114.50 = 178,195,271,661.60/x
  3. Step 3: Cross multiply
    518,200,250,422.85x = 777,406,390,114.50 × 178,195,271,661.60
  4. Step 4: Simplify right side
    518,200,250,422.85x = 138,530,142,877,917,128,949,760
  5. Step 5: Solve for x
    x = 138,530,142,877,917,128,949,760/518,200,250,422.85
  6. Step 6: Final answer
    x = 267,329,363,050.05

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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.