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Finding the Fourth Proportional to 18,714,902.26, 28,075,545.44 and 8,343,884.40

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Solution

The fourth proportional to 18,714,902.26, 28,075,545.44 and 8,343,884.40 is: 12,517,249.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,902.26 : 28,075,545.44 = 8,343,884.40 : x
  2. Step 2: Convert to fraction form
    18,714,902.26/28,075,545.44 = 8,343,884.40/x
  3. Step 3: Cross multiply
    18,714,902.26x = 28,075,545.44 × 8,343,884.40
  4. Step 4: Simplify right side
    18,714,902.26x = 234,259,105,618,307.16
  5. Step 5: Solve for x
    x = 234,259,105,618,307.16/18,714,902.26
  6. Step 6: Final answer
    x = 12,517,249.75

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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.