Home / 265,615,043.86-398,392,640.34-71,540,663.86

Finding the Fourth Proportional to 265,615,043.86, 398,392,640.34 and 71,540,663.86

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Solution

The fourth proportional to 265,615,043.86, 398,392,640.34 and 71,540,663.86 is: 107,302,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,615,043.86 : 398,392,640.34 = 71,540,663.86 : x
  2. Step 2: Convert to fraction form
    265,615,043.86/398,392,640.34 = 71,540,663.86/x
  3. Step 3: Cross multiply
    265,615,043.86x = 398,392,640.34 × 71,540,663.86
  4. Step 4: Simplify right side
    265,615,043.86x = 28,501,273,966,861,812
  5. Step 5: Solve for x
    x = 28,501,273,966,861,812/265,615,043.86
  6. Step 6: Final answer
    x = 107,302,935.68

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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.