Home / 521,520,780,008.55-782,281,170,012.82-149,291,000,552.55

Finding the Fourth Proportional to 521,520,780,008.55, 782,281,170,012.82 and 149,291,000,552.55

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Solution

The fourth proportional to 521,520,780,008.55, 782,281,170,012.82 and 149,291,000,552.55 is: 223,936,500,828.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,780,008.55 : 782,281,170,012.82 = 149,291,000,552.55 : x
  2. Step 2: Convert to fraction form
    521,520,780,008.55/782,281,170,012.82 = 149,291,000,552.55/x
  3. Step 3: Cross multiply
    521,520,780,008.55x = 782,281,170,012.82 × 149,291,000,552.55
  4. Step 4: Simplify right side
    521,520,780,008.55x = 116,787,538,584,633,346,097,152
  5. Step 5: Solve for x
    x = 116,787,538,584,633,346,097,152/521,520,780,008.55
  6. Step 6: Final answer
    x = 223,936,500,828.82

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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.