Home / 212,832,022.80-319,374,005.40-140,258,614.80

Finding the Fourth Proportional to 212,832,022.80, 319,374,005.40 and 140,258,614.80

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Solution

The fourth proportional to 212,832,022.80, 319,374,005.40 and 140,258,614.80 is: 210,470,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,832,022.80 : 319,374,005.40 = 140,258,614.80 : x
  2. Step 2: Convert to fraction form
    212,832,022.80/319,374,005.40 = 140,258,614.80/x
  3. Step 3: Cross multiply
    212,832,022.80x = 319,374,005.40 × 140,258,614.80
  4. Step 4: Simplify right side
    212,832,022.80x = 44,794,955,600,531,720
  5. Step 5: Solve for x
    x = 44,794,955,600,531,720/212,832,022.80
  6. Step 6: Final answer
    x = 210,470,938.59

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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.