Home / 108,009,429.12-161,995,870.13-30,268,440.92

Finding the Fourth Proportional to 108,009,429.12, 161,995,870.13 and 30,268,440.92

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Solution

The fourth proportional to 108,009,429.12, 161,995,870.13 and 30,268,440.92 is: 45,397,540.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,009,429.12 : 161,995,870.13 = 30,268,440.92 : x
  2. Step 2: Convert to fraction form
    108,009,429.12/161,995,870.13 = 30,268,440.92/x
  3. Step 3: Cross multiply
    108,009,429.12x = 161,995,870.13 × 30,268,440.92
  4. Step 4: Simplify right side
    108,009,429.12x = 4,903,362,424,674,393
  5. Step 5: Solve for x
    x = 4,903,362,424,674,393/108,009,429.12
  6. Step 6: Final answer
    x = 45,397,540.42

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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.