Home / 521,520,783,620.55-782,281,175,430.80-149,291,004,164.55

Finding the Fourth Proportional to 521,520,783,620.55, 782,281,175,430.80 and 149,291,004,164.55

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Solution

The fourth proportional to 521,520,783,620.55, 782,281,175,430.80 and 149,291,004,164.55 is: 223,936,506,246.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,783,620.55 : 782,281,175,430.80 = 149,291,004,164.55 : x
  2. Step 2: Convert to fraction form
    521,520,783,620.55/782,281,175,430.80 = 149,291,004,164.55/x
  3. Step 3: Cross multiply
    521,520,783,620.55x = 782,281,175,430.80 × 149,291,004,164.55
  4. Step 4: Simplify right side
    521,520,783,620.55x = 116,787,542,219,088,627,499,008
  5. Step 5: Solve for x
    x = 116,787,542,219,088,627,499,008/521,520,783,620.55
  6. Step 6: Final answer
    x = 223,936,506,246.82

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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.