Home / 279,068,207.52-385,110,367.20-155,308,851.84

Finding the Fourth Proportional to 279,068,207.52, 385,110,367.20 and 155,308,851.84

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Solution

The fourth proportional to 279,068,207.52, 385,110,367.20 and 155,308,851.84 is: 214,324,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,068,207.52 : 385,110,367.20 = 155,308,851.84 : x
  2. Step 2: Convert to fraction form
    279,068,207.52/385,110,367.20 = 155,308,851.84/x
  3. Step 3: Cross multiply
    279,068,207.52x = 385,110,367.20 × 155,308,851.84
  4. Step 4: Simplify right side
    279,068,207.52x = 59,811,048,961,512,792
  5. Step 5: Solve for x
    x = 59,811,048,961,512,792/279,068,207.52
  6. Step 6: Final answer
    x = 214,324,123.46

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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.