Home / 681,080,351.91-939,890,849.67-367,814,535.72

Finding the Fourth Proportional to 681,080,351.91, 939,890,849.67 and 367,814,535.72

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Solution

The fourth proportional to 681,080,351.91, 939,890,849.67 and 367,814,535.72 is: 507,584,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,080,351.91 : 939,890,849.67 = 367,814,535.72 : x
  2. Step 2: Convert to fraction form
    681,080,351.91/939,890,849.67 = 367,814,535.72/x
  3. Step 3: Cross multiply
    681,080,351.91x = 939,890,849.67 × 367,814,535.72
  4. Step 4: Simplify right side
    681,080,351.91x = 345,705,516,498,847,360
  5. Step 5: Solve for x
    x = 345,705,516,498,847,360/681,080,351.91
  6. Step 6: Final answer
    x = 507,584,039.87

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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.