Home / 219,924,921.76-303,497,101.20-122,139,777.76

Finding the Fourth Proportional to 219,924,921.76, 303,497,101.20 and 122,139,777.76

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Solution

The fourth proportional to 219,924,921.76, 303,497,101.20 and 122,139,777.76 is: 168,553,287.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,924,921.76 : 303,497,101.20 = 122,139,777.76 : x
  2. Step 2: Convert to fraction form
    219,924,921.76/303,497,101.20 = 122,139,777.76/x
  3. Step 3: Cross multiply
    219,924,921.76x = 303,497,101.20 × 122,139,777.76
  4. Step 4: Simplify right side
    219,924,921.76x = 37,069,068,491,372,232
  5. Step 5: Solve for x
    x = 37,069,068,491,372,232/219,924,921.76
  6. Step 6: Final answer
    x = 168,553,287.16

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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.