Home / 551,221,422.40-826,832,133.60-206,156,781.10

Finding the Fourth Proportional to 551,221,422.40, 826,832,133.60 and 206,156,781.10

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Solution

The fourth proportional to 551,221,422.40, 826,832,133.60 and 206,156,781.10 is: 309,235,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,221,422.40 : 826,832,133.60 = 206,156,781.10 : x
  2. Step 2: Convert to fraction form
    551,221,422.40/826,832,133.60 = 206,156,781.10/x
  3. Step 3: Cross multiply
    551,221,422.40x = 826,832,133.60 × 206,156,781.10
  4. Step 4: Simplify right side
    551,221,422.40x = 170,457,051,173,021,152
  5. Step 5: Solve for x
    x = 170,457,051,173,021,152/551,221,422.40
  6. Step 6: Final answer
    x = 309,235,171.65

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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.