Home / 311,630,418.60-467,445,627.90-299,726,140.20

Finding the Fourth Proportional to 311,630,418.60, 467,445,627.90 and 299,726,140.20

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Solution

The fourth proportional to 311,630,418.60, 467,445,627.90 and 299,726,140.20 is: 449,589,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,630,418.60 : 467,445,627.90 = 299,726,140.20 : x
  2. Step 2: Convert to fraction form
    311,630,418.60/467,445,627.90 = 299,726,140.20/x
  3. Step 3: Cross multiply
    311,630,418.60x = 467,445,627.90 × 299,726,140.20
  4. Step 4: Simplify right side
    311,630,418.60x = 140,105,673,803,832,416
  5. Step 5: Solve for x
    x = 140,105,673,803,832,416/311,630,418.60
  6. Step 6: Final answer
    x = 449,589,210.30

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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.