Home / 212,827,987.56-319,088,766.90-130,777,342.14

Finding the Fourth Proportional to 212,827,987.56, 319,088,766.90 and 130,777,342.14

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Solution

The fourth proportional to 212,827,987.56, 319,088,766.90 and 130,777,342.14 is: 196,071,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,827,987.56 : 319,088,766.90 = 130,777,342.14 : x
  2. Step 2: Convert to fraction form
    212,827,987.56/319,088,766.90 = 130,777,342.14/x
  3. Step 3: Cross multiply
    212,827,987.56x = 319,088,766.90 × 130,777,342.14
  4. Step 4: Simplify right side
    212,827,987.56x = 41,729,580,841,912,008
  5. Step 5: Solve for x
    x = 41,729,580,841,912,008/212,827,987.56
  6. Step 6: Final answer
    x = 196,071,866.86

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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.