Home / 28,554,955.26-39,406,296.12-15,502,203.78

Finding the Fourth Proportional to 28,554,955.26, 39,406,296.12 and 15,502,203.78

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Solution

The fourth proportional to 28,554,955.26, 39,406,296.12 and 15,502,203.78 is: 21,393,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554,955.26 : 39,406,296.12 = 15,502,203.78 : x
  2. Step 2: Convert to fraction form
    28,554,955.26/39,406,296.12 = 15,502,203.78/x
  3. Step 3: Cross multiply
    28,554,955.26x = 39,406,296.12 × 15,502,203.78
  4. Step 4: Simplify right side
    28,554,955.26x = 610,884,432,667,263.25
  5. Step 5: Solve for x
    x = 610,884,432,667,263.25/28,554,955.26
  6. Step 6: Final answer
    x = 21,393,289.78

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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.