Home / 20,577,996-28,395,587.52-11,878,971.12

Finding the Fourth Proportional to 20,577,996, 28,395,587.52 and 11,878,971.12

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Solution

The fourth proportional to 20,577,996, 28,395,587.52 and 11,878,971.12 is: 16,391,798.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,996 : 28,395,587.52 = 11,878,971.12 : x
  2. Step 2: Convert to fraction form
    20,577,996/28,395,587.52 = 11,878,971.12/x
  3. Step 3: Cross multiply
    20,577,996x = 28,395,587.52 × 11,878,971.12
  4. Step 4: Simplify right side
    20,577,996x = 337,310,364,085,512.38
  5. Step 5: Solve for x
    x = 337,310,364,085,512.38/20,577,996
  6. Step 6: Final answer
    x = 16,391,798.51

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Double scale
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1.5x scale

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.