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Finding the Fourth Proportional to 268,936,278.30, 403,404,417.45 and 268,936,278.30

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Solution

The fourth proportional to 268,936,278.30, 403,404,417.45 and 268,936,278.30 is: 403,404,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,936,278.30 : 403,404,417.45 = 268,936,278.30 : x
  2. Step 2: Convert to fraction form
    268,936,278.30/403,404,417.45 = 268,936,278.30/x
  3. Step 3: Cross multiply
    268,936,278.30x = 403,404,417.45 × 268,936,278.30
  4. Step 4: Simplify right side
    268,936,278.30x = 108,490,082,678,782,576
  5. Step 5: Solve for x
    x = 108,490,082,678,782,576/268,936,278.30
  6. Step 6: Final answer
    x = 403,404,417.45

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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.