Home / 18,721,271.76-28,082,958.12-5,257,050

Finding the Fourth Proportional to 18,721,271.76, 28,082,958.12 and 5,257,050

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Solution

The fourth proportional to 18,721,271.76, 28,082,958.12 and 5,257,050 is: 7,885,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,271.76 : 28,082,958.12 = 5,257,050 : x
  2. Step 2: Convert to fraction form
    18,721,271.76/28,082,958.12 = 5,257,050/x
  3. Step 3: Cross multiply
    18,721,271.76x = 28,082,958.12 × 5,257,050
  4. Step 4: Simplify right side
    18,721,271.76x = 147,633,514,984,746
  5. Step 5: Solve for x
    x = 147,633,514,984,746/18,721,271.76
  6. Step 6: Final answer
    x = 7,885,869.98

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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.