Home / 18,805,536.40-28,208,304.60-12,087,072.40

Finding the Fourth Proportional to 18,805,536.40, 28,208,304.60 and 12,087,072.40

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Solution

The fourth proportional to 18,805,536.40, 28,208,304.60 and 12,087,072.40 is: 18,130,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805,536.40 : 28,208,304.60 = 12,087,072.40 : x
  2. Step 2: Convert to fraction form
    18,805,536.40/28,208,304.60 = 12,087,072.40/x
  3. Step 3: Cross multiply
    18,805,536.40x = 28,208,304.60 × 12,087,072.40
  4. Step 4: Simplify right side
    18,805,536.40x = 340,955,819,981,453.06
  5. Step 5: Solve for x
    x = 340,955,819,981,453.06/18,805,536.40
  6. Step 6: Final answer
    x = 18,130,608.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.