Home / 311,899,400.90-467,849,101.35-81,891,736.10

Finding the Fourth Proportional to 311,899,400.90, 467,849,101.35 and 81,891,736.10

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Solution

The fourth proportional to 311,899,400.90, 467,849,101.35 and 81,891,736.10 is: 122,837,604.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,899,400.90 : 467,849,101.35 = 81,891,736.10 : x
  2. Step 2: Convert to fraction form
    311,899,400.90/467,849,101.35 = 81,891,736.10/x
  3. Step 3: Cross multiply
    311,899,400.90x = 467,849,101.35 × 81,891,736.10
  4. Step 4: Simplify right side
    311,899,400.90x = 38,312,975,142,376,352
  5. Step 5: Solve for x
    x = 38,312,975,142,376,352/311,899,400.90
  6. Step 6: Final answer
    x = 122,837,604.15

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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.