Home / 28,539,377.70-39,384,141.48-15,486,304.68

Finding the Fourth Proportional to 28,539,377.70, 39,384,141.48 and 15,486,304.68

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Solution

The fourth proportional to 28,539,377.70, 39,384,141.48 and 15,486,304.68 is: 21,370,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539,377.70 : 39,384,141.48 = 15,486,304.68 : x
  2. Step 2: Convert to fraction form
    28,539,377.70/39,384,141.48 = 15,486,304.68/x
  3. Step 3: Cross multiply
    28,539,377.70x = 39,384,141.48 × 15,486,304.68
  4. Step 4: Simplify right side
    28,539,377.70x = 609,914,814,519,506.12
  5. Step 5: Solve for x
    x = 609,914,814,519,506.12/28,539,377.70
  6. Step 6: Final answer
    x = 21,370,992.07

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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.