Home / 521,532,001.80-782,298,002.70-214,722,145.80

Finding the Fourth Proportional to 521,532,001.80, 782,298,002.70 and 214,722,145.80

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Solution

The fourth proportional to 521,532,001.80, 782,298,002.70 and 214,722,145.80 is: 322,083,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,532,001.80 : 782,298,002.70 = 214,722,145.80 : x
  2. Step 2: Convert to fraction form
    521,532,001.80/782,298,002.70 = 214,722,145.80/x
  3. Step 3: Cross multiply
    521,532,001.80x = 782,298,002.70 × 214,722,145.80
  4. Step 4: Simplify right side
    521,532,001.80x = 167,976,705,794,798,208
  5. Step 5: Solve for x
    x = 167,976,705,794,798,208/521,532,001.80
  6. Step 6: Final answer
    x = 322,083,218.70

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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.