Home / 280,552,793.82-387,163,416.51-156,793,467.30

Finding the Fourth Proportional to 280,552,793.82, 387,163,416.51 and 156,793,467.30

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Solution

The fourth proportional to 280,552,793.82, 387,163,416.51 and 156,793,467.30 is: 216,375,298.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,552,793.82 : 387,163,416.51 = 156,793,467.30 : x
  2. Step 2: Convert to fraction form
    280,552,793.82/387,163,416.51 = 156,793,467.30/x
  3. Step 3: Cross multiply
    280,552,793.82x = 387,163,416.51 × 156,793,467.30
  4. Step 4: Simplify right side
    280,552,793.82x = 60,704,694,486,316,968
  5. Step 5: Solve for x
    x = 60,704,694,486,316,968/280,552,793.82
  6. Step 6: Final answer
    x = 216,375,298.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.