Home / 320,994,000.18-443,107,321.83-216,713,320.38

Finding the Fourth Proportional to 320,994,000.18, 443,107,321.83 and 216,713,320.38

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Solution

The fourth proportional to 320,994,000.18, 443,107,321.83 and 216,713,320.38 is: 299,155,931.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,994,000.18 : 443,107,321.83 = 216,713,320.38 : x
  2. Step 2: Convert to fraction form
    320,994,000.18/443,107,321.83 = 216,713,320.38/x
  3. Step 3: Cross multiply
    320,994,000.18x = 443,107,321.83 × 216,713,320.38
  4. Step 4: Simplify right side
    320,994,000.18x = 96,027,258,998,468,560
  5. Step 5: Solve for x
    x = 96,027,258,998,468,560/320,994,000.18
  6. Step 6: Final answer
    x = 299,155,931.09

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1.5x scale

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.