Home / 400,207,783.38-551,848,172.85-260,719,873.62

Finding the Fourth Proportional to 400,207,783.38, 551,848,172.85 and 260,719,873.62

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Solution

The fourth proportional to 400,207,783.38, 551,848,172.85 and 260,719,873.62 is: 359,507,715.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,207,783.38 : 551,848,172.85 = 260,719,873.62 : x
  2. Step 2: Convert to fraction form
    400,207,783.38/551,848,172.85 = 260,719,873.62/x
  3. Step 3: Cross multiply
    400,207,783.38x = 551,848,172.85 × 260,719,873.62
  4. Step 4: Simplify right side
    400,207,783.38x = 143,877,785,882,879,920
  5. Step 5: Solve for x
    x = 143,877,785,882,879,920/400,207,783.38
  6. Step 6: Final answer
    x = 359,507,715.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.