Home / 681,080,421.87-939,890,945.93-367,814,605.46

Finding the Fourth Proportional to 681,080,421.87, 939,890,945.93 and 367,814,605.46

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Solution

The fourth proportional to 681,080,421.87, 939,890,945.93 and 367,814,605.46 is: 507,584,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,080,421.87 : 939,890,945.93 = 367,814,605.46 : x
  2. Step 2: Convert to fraction form
    681,080,421.87/939,890,945.93 = 367,814,605.46/x
  3. Step 3: Cross multiply
    681,080,421.87x = 939,890,945.93 × 367,814,605.46
  4. Step 4: Simplify right side
    681,080,421.87x = 345,705,617,446,145,344
  5. Step 5: Solve for x
    x = 345,705,617,446,145,344/681,080,421.87
  6. Step 6: Final answer
    x = 507,584,135.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.