Home / 356,781,728.40-535,172,592.60-266,082,464.40

Finding the Fourth Proportional to 356,781,728.40, 535,172,592.60 and 266,082,464.40

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Solution

The fourth proportional to 356,781,728.40, 535,172,592.60 and 266,082,464.40 is: 399,123,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,781,728.40 : 535,172,592.60 = 266,082,464.40 : x
  2. Step 2: Convert to fraction form
    356,781,728.40/535,172,592.60 = 266,082,464.40/x
  3. Step 3: Cross multiply
    356,781,728.40x = 535,172,592.60 × 266,082,464.40
  4. Step 4: Simplify right side
    356,781,728.40x = 142,400,042,318,345,216
  5. Step 5: Solve for x
    x = 142,400,042,318,345,216/356,781,728.40
  6. Step 6: Final answer
    x = 399,123,696.60

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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.