Home / 20,749,839.47-28,637,207.19-17,259,019.52

Finding the Fourth Proportional to 20,749,839.47, 28,637,207.19 and 17,259,019.52

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Solution

The fourth proportional to 20,749,839.47, 28,637,207.19 and 17,259,019.52 is: 23,819,467.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749,839.47 : 28,637,207.19 = 17,259,019.52 : x
  2. Step 2: Convert to fraction form
    20,749,839.47/28,637,207.19 = 17,259,019.52/x
  3. Step 3: Cross multiply
    20,749,839.47x = 28,637,207.19 × 17,259,019.52
  4. Step 4: Simplify right side
    20,749,839.47x = 494,250,117,804,199.19
  5. Step 5: Solve for x
    x = 494,250,117,804,199.19/20,749,839.47
  6. Step 6: Final answer
    x = 23,819,467.07

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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.