Home / 587,121,840.80-880,682,761.20-393,630,077.60

Finding the Fourth Proportional to 587,121,840.80, 880,682,761.20 and 393,630,077.60

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Solution

The fourth proportional to 587,121,840.80, 880,682,761.20 and 393,630,077.60 is: 590,445,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,121,840.80 : 880,682,761.20 = 393,630,077.60 : x
  2. Step 2: Convert to fraction form
    587,121,840.80/880,682,761.20 = 393,630,077.60/x
  3. Step 3: Cross multiply
    587,121,840.80x = 880,682,761.20 × 393,630,077.60
  4. Step 4: Simplify right side
    587,121,840.80x = 346,663,223,632,138,304
  5. Step 5: Solve for x
    x = 346,663,223,632,138,304/587,121,840.80
  6. Step 6: Final answer
    x = 590,445,116.40

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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.