Home / 20,772,100.14-28,664,615.25-11,480,018.28

Finding the Fourth Proportional to 20,772,100.14, 28,664,615.25 and 11,480,018.28

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Solution

The fourth proportional to 20,772,100.14, 28,664,615.25 and 11,480,018.28 is: 15,841,937.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772,100.14 : 28,664,615.25 = 11,480,018.28 : x
  2. Step 2: Convert to fraction form
    20,772,100.14/28,664,615.25 = 11,480,018.28/x
  3. Step 3: Cross multiply
    20,772,100.14x = 28,664,615.25 × 11,480,018.28
  4. Step 4: Simplify right side
    20,772,100.14x = 329,070,307,059,166.75
  5. Step 5: Solve for x
    x = 329,070,307,059,166.75/20,772,100.14
  6. Step 6: Final answer
    x = 15,841,937.25

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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.