Home / 31,205,135.12-43,059,313.40-17,978,639.04

Finding the Fourth Proportional to 31,205,135.12, 43,059,313.40 and 17,978,639.04

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Solution

The fourth proportional to 31,205,135.12, 43,059,313.40 and 17,978,639.04 is: 24,808,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205,135.12 : 43,059,313.40 = 17,978,639.04 : x
  2. Step 2: Convert to fraction form
    31,205,135.12/43,059,313.40 = 17,978,639.04/x
  3. Step 3: Cross multiply
    31,205,135.12x = 43,059,313.40 × 17,978,639.04
  4. Step 4: Simplify right side
    31,205,135.12x = 774,147,852,928,835.12
  5. Step 5: Solve for x
    x = 774,147,852,928,835.12/31,205,135.12
  6. Step 6: Final answer
    x = 24,808,348.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.