Home / 20,693,132.64-28,556,532-11,996,347.20

Finding the Fourth Proportional to 20,693,132.64, 28,556,532 and 11,996,347.20

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Solution

The fourth proportional to 20,693,132.64, 28,556,532 and 11,996,347.20 is: 16,554,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,132.64 : 28,556,532 = 11,996,347.20 : x
  2. Step 2: Convert to fraction form
    20,693,132.64/28,556,532 = 11,996,347.20/x
  3. Step 3: Cross multiply
    20,693,132.64x = 28,556,532 × 11,996,347.20
  4. Step 4: Simplify right side
    20,693,132.64x = 342,574,072,699,910.38
  5. Step 5: Solve for x
    x = 342,574,072,699,910.38/20,693,132.64
  6. Step 6: Final answer
    x = 16,554,964.33

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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.