Home / 13,729,854.75-18,947,199.60-7,619,266.59

Finding the Fourth Proportional to 13,729,854.75, 18,947,199.60 and 7,619,266.59

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Solution

The fourth proportional to 13,729,854.75, 18,947,199.60 and 7,619,266.59 is: 10,514,587.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,854.75 : 18,947,199.60 = 7,619,266.59 : x
  2. Step 2: Convert to fraction form
    13,729,854.75/18,947,199.60 = 7,619,266.59/x
  3. Step 3: Cross multiply
    13,729,854.75x = 18,947,199.60 × 7,619,266.59
  4. Step 4: Simplify right side
    13,729,854.75x = 144,363,764,886,341.38
  5. Step 5: Solve for x
    x = 144,363,764,886,341.38/13,729,854.75
  6. Step 6: Final answer
    x = 10,514,587.92

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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.