Home / 288,258,621.21-397,797,112.82-156,099,762.61

Finding the Fourth Proportional to 288,258,621.21, 397,797,112.82 and 156,099,762.61

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Solution

The fourth proportional to 288,258,621.21, 397,797,112.82 and 156,099,762.61 is: 215,417,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,258,621.21 : 397,797,112.82 = 156,099,762.61 : x
  2. Step 2: Convert to fraction form
    288,258,621.21/397,797,112.82 = 156,099,762.61/x
  3. Step 3: Cross multiply
    288,258,621.21x = 397,797,112.82 × 156,099,762.61
  4. Step 4: Simplify right side
    288,258,621.21x = 62,096,034,878,902,600
  5. Step 5: Solve for x
    x = 62,096,034,878,902,600/288,258,621.21
  6. Step 6: Final answer
    x = 215,417,789.13

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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.