Home / 10,902,891.78-16,344,439.03-5,439,657.54

Finding the Fourth Proportional to 10,902,891.78, 16,344,439.03 and 5,439,657.54

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Solution

The fourth proportional to 10,902,891.78, 16,344,439.03 and 5,439,657.54 is: 8,154,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902,891.78 : 16,344,439.03 = 5,439,657.54 : x
  2. Step 2: Convert to fraction form
    10,902,891.78/16,344,439.03 = 5,439,657.54/x
  3. Step 3: Cross multiply
    10,902,891.78x = 16,344,439.03 × 5,439,657.54
  4. Step 4: Simplify right side
    10,902,891.78x = 88,908,151,048,994.59
  5. Step 5: Solve for x
    x = 88,908,151,048,994.59/10,902,891.78
  6. Step 6: Final answer
    x = 8,154,547.70

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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.