Home / 108,009,431.12-161,995,873.12-30,268,442.92

Finding the Fourth Proportional to 108,009,431.12, 161,995,873.12 and 30,268,442.92

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Solution

The fourth proportional to 108,009,431.12, 161,995,873.12 and 30,268,442.92 is: 45,397,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,009,431.12 : 161,995,873.12 = 30,268,442.92 : x
  2. Step 2: Convert to fraction form
    108,009,431.12/161,995,873.12 = 30,268,442.92/x
  3. Step 3: Cross multiply
    108,009,431.12x = 161,995,873.12 × 30,268,442.92
  4. Step 4: Simplify right side
    108,009,431.12x = 4,903,362,838,808,283
  5. Step 5: Solve for x
    x = 4,903,362,838,808,283/108,009,431.12
  6. Step 6: Final answer
    x = 45,397,543.42

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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.