Home / 13,729,886.76-18,947,243.72-7,619,298.60

Finding the Fourth Proportional to 13,729,886.76, 18,947,243.72 and 7,619,298.60

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Solution

The fourth proportional to 13,729,886.76, 18,947,243.72 and 7,619,298.60 is: 10,514,632.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,886.76 : 18,947,243.72 = 7,619,298.60 : x
  2. Step 2: Convert to fraction form
    13,729,886.76/18,947,243.72 = 7,619,298.60/x
  3. Step 3: Cross multiply
    13,729,886.76x = 18,947,243.72 × 7,619,298.60
  4. Step 4: Simplify right side
    13,729,886.76x = 144,364,707,549,654.78
  5. Step 5: Solve for x
    x = 144,364,707,549,654.78/13,729,886.76
  6. Step 6: Final answer
    x = 10,514,632.06

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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.