Home / 31,100,856.12-42,927,718.01-18,052,318.86

Finding the Fourth Proportional to 31,100,856.12, 42,927,718.01 and 18,052,318.86

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Solution

The fourth proportional to 31,100,856.12, 42,927,718.01 and 18,052,318.86 is: 24,917,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,100,856.12 : 42,927,718.01 = 18,052,318.86 : x
  2. Step 2: Convert to fraction form
    31,100,856.12/42,927,718.01 = 18,052,318.86/x
  3. Step 3: Cross multiply
    31,100,856.12x = 42,927,718.01 × 18,052,318.86
  4. Step 4: Simplify right side
    31,100,856.12x = 774,944,853,601,134.88
  5. Step 5: Solve for x
    x = 774,944,853,601,134.88/31,100,856.12
  6. Step 6: Final answer
    x = 24,917,155.04

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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.