Home / 398,467,148.92-597,138,887.13-188,153,440.18

Finding the Fourth Proportional to 398,467,148.92, 597,138,887.13 and 188,153,440.18

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Solution

The fourth proportional to 398,467,148.92, 597,138,887.13 and 188,153,440.18 is: 281,964,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,467,148.92 : 597,138,887.13 = 188,153,440.18 : x
  2. Step 2: Convert to fraction form
    398,467,148.92/597,138,887.13 = 188,153,440.18/x
  3. Step 3: Cross multiply
    398,467,148.92x = 597,138,887.13 × 188,153,440.18
  4. Step 4: Simplify right side
    398,467,148.92x = 112,353,735,876,567,808
  5. Step 5: Solve for x
    x = 112,353,735,876,567,808/398,467,148.92
  6. Step 6: Final answer
    x = 281,964,865.06

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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.