Home / 5,191,429.58-7,164,317.28-2,868,471.78

Finding the Fourth Proportional to 5,191,429.58, 7,164,317.28 and 2,868,471.78

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Solution

The fourth proportional to 5,191,429.58, 7,164,317.28 and 2,868,471.78 is: 3,958,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191,429.58 : 7,164,317.28 = 2,868,471.78 : x
  2. Step 2: Convert to fraction form
    5,191,429.58/7,164,317.28 = 2,868,471.78/x
  3. Step 3: Cross multiply
    5,191,429.58x = 7,164,317.28 × 2,868,471.78
  4. Step 4: Simplify right side
    5,191,429.58x = 20,550,641,940,646.36
  5. Step 5: Solve for x
    x = 20,550,641,940,646.36/5,191,429.58
  6. Step 6: Final answer
    x = 3,958,570.88

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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.