Home / 28,928,420.09-39,918,581.30-17,165,661.65

Finding the Fourth Proportional to 28,928,420.09, 39,918,581.30 and 17,165,661.65

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Solution

The fourth proportional to 28,928,420.09, 39,918,581.30 and 17,165,661.65 is: 23,687,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928,420.09 : 39,918,581.30 = 17,165,661.65 : x
  2. Step 2: Convert to fraction form
    28,928,420.09/39,918,581.30 = 17,165,661.65/x
  3. Step 3: Cross multiply
    28,928,420.09x = 39,918,581.30 × 17,165,661.65
  4. Step 4: Simplify right side
    28,928,420.09x = 685,228,860,057,988.75
  5. Step 5: Solve for x
    x = 685,228,860,057,988.75/28,928,420.09
  6. Step 6: Final answer
    x = 23,687,047.48

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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.