Home / 28,266,968.52-39,008,766.96-15,879,767.76

Finding the Fourth Proportional to 28,266,968.52, 39,008,766.96 and 15,879,767.76

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Solution

The fourth proportional to 28,266,968.52, 39,008,766.96 and 15,879,767.76 is: 21,914,276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266,968.52 : 39,008,766.96 = 15,879,767.76 : x
  2. Step 2: Convert to fraction form
    28,266,968.52/39,008,766.96 = 15,879,767.76/x
  3. Step 3: Cross multiply
    28,266,968.52x = 39,008,766.96 × 15,879,767.76
  4. Step 4: Simplify right side
    28,266,968.52x = 619,450,159,928,761.25
  5. Step 5: Solve for x
    x = 619,450,159,928,761.25/28,266,968.52
  6. Step 6: Final answer
    x = 21,914,276.36

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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.