Home / 311,383,572.96-429,798,992.56-205,614,207.04

Finding the Fourth Proportional to 311,383,572.96, 429,798,992.56 and 205,614,207.04

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Solution

The fourth proportional to 311,383,572.96, 429,798,992.56 and 205,614,207.04 is: 283,806,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,383,572.96 : 429,798,992.56 = 205,614,207.04 : x
  2. Step 2: Convert to fraction form
    311,383,572.96/429,798,992.56 = 205,614,207.04/x
  3. Step 3: Cross multiply
    311,383,572.96x = 429,798,992.56 × 205,614,207.04
  4. Step 4: Simplify right side
    311,383,572.96x = 88,372,779,041,815,264
  5. Step 5: Solve for x
    x = 88,372,779,041,815,264/311,383,572.96
  6. Step 6: Final answer
    x = 283,806,811.65

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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.