Home / 28,554,899.40-39,406,446.54-15,502,708.44

Finding the Fourth Proportional to 28,554,899.40, 39,406,446.54 and 15,502,708.44

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Solution

The fourth proportional to 28,554,899.40, 39,406,446.54 and 15,502,708.44 is: 21,394,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554,899.40 : 39,406,446.54 = 15,502,708.44 : x
  2. Step 2: Convert to fraction form
    28,554,899.40/39,406,446.54 = 15,502,708.44/x
  3. Step 3: Cross multiply
    28,554,899.40x = 39,406,446.54 × 15,502,708.44
  4. Step 4: Simplify right side
    28,554,899.40x = 610,906,651,366,066.75
  5. Step 5: Solve for x
    x = 610,906,651,366,066.75/28,554,899.40
  6. Step 6: Final answer
    x = 21,394,109.74

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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.