Home / 18,648,048.30-27,972,072.45-13,609,200.30

Finding the Fourth Proportional to 18,648,048.30, 27,972,072.45 and 13,609,200.30

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Solution

The fourth proportional to 18,648,048.30, 27,972,072.45 and 13,609,200.30 is: 20,413,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,648,048.30 : 27,972,072.45 = 13,609,200.30 : x
  2. Step 2: Convert to fraction form
    18,648,048.30/27,972,072.45 = 13,609,200.30/x
  3. Step 3: Cross multiply
    18,648,048.30x = 27,972,072.45 × 13,609,200.30
  4. Step 4: Simplify right side
    18,648,048.30x = 380,677,536,778,161.75
  5. Step 5: Solve for x
    x = 380,677,536,778,161.75/18,648,048.30
  6. Step 6: Final answer
    x = 20,413,800.45

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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.