Home / 5,168,155.47-7,751,641.68-1,381,933.59

Finding the Fourth Proportional to 5,168,155.47, 7,751,641.68 and 1,381,933.59

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Solution

The fourth proportional to 5,168,155.47, 7,751,641.68 and 1,381,933.59 is: 2,072,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168,155.47 : 7,751,641.68 = 1,381,933.59 : x
  2. Step 2: Convert to fraction form
    5,168,155.47/7,751,641.68 = 1,381,933.59/x
  3. Step 3: Cross multiply
    5,168,155.47x = 7,751,641.68 × 1,381,933.59
  4. Step 4: Simplify right side
    5,168,155.47x = 10,712,253,986,167.37
  5. Step 5: Solve for x
    x = 10,712,253,986,167.37/5,168,155.47
  6. Step 6: Final answer
    x = 2,072,742.21

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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.