Home / 212,871,490.20-319,307,235.30-166,954,987.80

Finding the Fourth Proportional to 212,871,490.20, 319,307,235.30 and 166,954,987.80

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Solution

The fourth proportional to 212,871,490.20, 319,307,235.30 and 166,954,987.80 is: 250,432,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,871,490.20 : 319,307,235.30 = 166,954,987.80 : x
  2. Step 2: Convert to fraction form
    212,871,490.20/319,307,235.30 = 166,954,987.80/x
  3. Step 3: Cross multiply
    212,871,490.20x = 319,307,235.30 × 166,954,987.80
  4. Step 4: Simplify right side
    212,871,490.20x = 53,309,935,573,963,232
  5. Step 5: Solve for x
    x = 53,309,935,573,963,232/212,871,490.20
  6. Step 6: Final answer
    x = 250,432,481.70

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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.