Home / 13,557,287.28-18,708,984.08-7,362,279.84

Finding the Fourth Proportional to 13,557,287.28, 18,708,984.08 and 7,362,279.84

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Solution

The fourth proportional to 13,557,287.28, 18,708,984.08 and 7,362,279.84 is: 10,159,906.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557,287.28 : 18,708,984.08 = 7,362,279.84 : x
  2. Step 2: Convert to fraction form
    13,557,287.28/18,708,984.08 = 7,362,279.84/x
  3. Step 3: Cross multiply
    13,557,287.28x = 18,708,984.08 × 7,362,279.84
  4. Step 4: Simplify right side
    13,557,287.28x = 137,740,776,319,064.94
  5. Step 5: Solve for x
    x = 137,740,776,319,064.94/13,557,287.28
  6. Step 6: Final answer
    x = 10,159,906.88

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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.