Home / 320,995,895.60-443,109,941.16-216,715,216.88

Finding the Fourth Proportional to 320,995,895.60, 443,109,941.16 and 216,715,216.88

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Solution

The fourth proportional to 320,995,895.60, 443,109,941.16 and 216,715,216.88 is: 299,158,550.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,995,895.60 : 443,109,941.16 = 216,715,216.88 : x
  2. Step 2: Convert to fraction form
    320,995,895.60/443,109,941.16 = 216,715,216.88/x
  3. Step 3: Cross multiply
    320,995,895.60x = 443,109,941.16 × 216,715,216.88
  4. Step 4: Simplify right side
    320,995,895.60x = 96,028,667,000,173,440
  5. Step 5: Solve for x
    x = 96,028,667,000,173,440/320,995,895.60
  6. Step 6: Final answer
    x = 299,158,550.99

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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.