Home / 288,023,983.83-431,987,287.64-80,714,717.55

Finding the Fourth Proportional to 288,023,983.83, 431,987,287.64 and 80,714,717.55

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Solution

The fourth proportional to 288,023,983.83, 431,987,287.64 and 80,714,717.55 is: 121,058,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,023,983.83 : 431,987,287.64 = 80,714,717.55 : x
  2. Step 2: Convert to fraction form
    288,023,983.83/431,987,287.64 = 80,714,717.55/x
  3. Step 3: Cross multiply
    288,023,983.83x = 431,987,287.64 × 80,714,717.55
  4. Step 4: Simplify right side
    288,023,983.83x = 34,867,731,906,649,632
  5. Step 5: Solve for x
    x = 34,867,731,906,649,632/288,023,983.83
  6. Step 6: Final answer
    x = 121,058,432.16

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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.