Home / 18,721,269.76-28,082,955.12-5,257,048

Finding the Fourth Proportional to 18,721,269.76, 28,082,955.12 and 5,257,048

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Solution

The fourth proportional to 18,721,269.76, 28,082,955.12 and 5,257,048 is: 7,885,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,269.76 : 28,082,955.12 = 5,257,048 : x
  2. Step 2: Convert to fraction form
    18,721,269.76/28,082,955.12 = 5,257,048/x
  3. Step 3: Cross multiply
    18,721,269.76x = 28,082,955.12 × 5,257,048
  4. Step 4: Simplify right side
    18,721,269.76x = 147,633,443,047,685.75
  5. Step 5: Solve for x
    x = 147,633,443,047,685.75/18,721,269.76
  6. Step 6: Final answer
    x = 7,885,866.98

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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.