Home / 20,577,928.60-28,395,495.42-11,878,903.73

Finding the Fourth Proportional to 20,577,928.60, 28,395,495.42 and 11,878,903.73

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Solution

The fourth proportional to 20,577,928.60, 28,395,495.42 and 11,878,903.73 is: 16,391,706.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,928.60 : 28,395,495.42 = 11,878,903.73 : x
  2. Step 2: Convert to fraction form
    20,577,928.60/28,395,495.42 = 11,878,903.73/x
  3. Step 3: Cross multiply
    20,577,928.60x = 28,395,495.42 × 11,878,903.73
  4. Step 4: Simplify right side
    20,577,928.60x = 337,307,356,553,097.62
  5. Step 5: Solve for x
    x = 337,307,356,553,097.62/20,577,928.60
  6. Step 6: Final answer
    x = 16,391,706.04

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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.