Home / 5,173,804.08-7,139,856.42-2,818,990.71

Finding the Fourth Proportional to 5,173,804.08, 7,139,856.42 and 2,818,990.71

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Solution

The fourth proportional to 5,173,804.08, 7,139,856.42 and 2,818,990.71 is: 3,890,210.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173,804.08 : 7,139,856.42 = 2,818,990.71 : x
  2. Step 2: Convert to fraction form
    5,173,804.08/7,139,856.42 = 2,818,990.71/x
  3. Step 3: Cross multiply
    5,173,804.08x = 7,139,856.42 × 2,818,990.71
  4. Step 4: Simplify right side
    5,173,804.08x = 20,127,188,918,713.86
  5. Step 5: Solve for x
    x = 20,127,188,918,713.86/5,173,804.08
  6. Step 6: Final answer
    x = 3,890,210.88

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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.