Home / 20,663,656.75-28,516,108.65-11,372,296.60

Finding the Fourth Proportional to 20,663,656.75, 28,516,108.65 and 11,372,296.60

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Solution

The fourth proportional to 20,663,656.75, 28,516,108.65 and 11,372,296.60 is: 15,693,913.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663,656.75 : 28,516,108.65 = 11,372,296.60 : x
  2. Step 2: Convert to fraction form
    20,663,656.75/28,516,108.65 = 11,372,296.60/x
  3. Step 3: Cross multiply
    20,663,656.75x = 28,516,108.65 × 11,372,296.60
  4. Step 4: Simplify right side
    20,663,656.75x = 324,293,645,303,045.06
  5. Step 5: Solve for x
    x = 324,293,645,303,045.06/20,663,656.75
  6. Step 6: Final answer
    x = 15,693,913.68

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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.