Home / 19,031,010.40-28,546,515.60-13,291,447.60

Finding the Fourth Proportional to 19,031,010.40, 28,546,515.60 and 13,291,447.60

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Solution

The fourth proportional to 19,031,010.40, 28,546,515.60 and 13,291,447.60 is: 19,937,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031,010.40 : 28,546,515.60 = 13,291,447.60 : x
  2. Step 2: Convert to fraction form
    19,031,010.40/28,546,515.60 = 13,291,447.60/x
  3. Step 3: Cross multiply
    19,031,010.40x = 28,546,515.60 × 13,291,447.60
  4. Step 4: Simplify right side
    19,031,010.40x = 379,424,516,259,982.56
  5. Step 5: Solve for x
    x = 379,424,516,259,982.56/19,031,010.40
  6. Step 6: Final answer
    x = 19,937,171.40

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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.