Home / 28,775,672.58-39,709,246.50-15,723,379.56

Finding the Fourth Proportional to 28,775,672.58, 39,709,246.50 and 15,723,379.56

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Solution

The fourth proportional to 28,775,672.58, 39,709,246.50 and 15,723,379.56 is: 21,697,618.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775,672.58 : 39,709,246.50 = 15,723,379.56 : x
  2. Step 2: Convert to fraction form
    28,775,672.58/39,709,246.50 = 15,723,379.56/x
  3. Step 3: Cross multiply
    28,775,672.58x = 39,709,246.50 × 15,723,379.56
  4. Step 4: Simplify right side
    28,775,672.58x = 624,363,554,761,101.50
  5. Step 5: Solve for x
    x = 624,363,554,761,101.50/28,775,672.58
  6. Step 6: Final answer
    x = 21,697,618.12

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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.