Home / 521,786,010.60-782,679,015.90-214,920,167.40

Finding the Fourth Proportional to 521,786,010.60, 782,679,015.90 and 214,920,167.40

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Solution

The fourth proportional to 521,786,010.60, 782,679,015.90 and 214,920,167.40 is: 322,380,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,786,010.60 : 782,679,015.90 = 214,920,167.40 : x
  2. Step 2: Convert to fraction form
    521,786,010.60/782,679,015.90 = 214,920,167.40/x
  3. Step 3: Cross multiply
    521,786,010.60x = 782,679,015.90 × 214,920,167.40
  4. Step 4: Simplify right side
    521,786,010.60x = 168,213,505,117,695,264
  5. Step 5: Solve for x
    x = 168,213,505,117,695,264/521,786,010.60
  6. Step 6: Final answer
    x = 322,380,251.10

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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.