Home / 18,721,815.60-28,082,723.40-15,698,506.80

Finding the Fourth Proportional to 18,721,815.60, 28,082,723.40 and 15,698,506.80

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Solution

The fourth proportional to 18,721,815.60, 28,082,723.40 and 15,698,506.80 is: 23,547,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,815.60 : 28,082,723.40 = 15,698,506.80 : x
  2. Step 2: Convert to fraction form
    18,721,815.60/28,082,723.40 = 15,698,506.80/x
  3. Step 3: Cross multiply
    18,721,815.60x = 28,082,723.40 × 15,698,506.80
  4. Step 4: Simplify right side
    18,721,815.60x = 440,856,824,257,419.12
  5. Step 5: Solve for x
    x = 440,856,824,257,419.12/18,721,815.60
  6. Step 6: Final answer
    x = 23,547,760.20

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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.