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Finding the Fourth Proportional to 279,936,277.90, 392,313,896.90 and 279,936,277.90

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Solution

The fourth proportional to 279,936,277.90, 392,313,896.90 and 279,936,277.90 is: 392,313,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,277.90 : 392,313,896.90 = 279,936,277.90 : x
  2. Step 2: Convert to fraction form
    279,936,277.90/392,313,896.90 = 279,936,277.90/x
  3. Step 3: Cross multiply
    279,936,277.90x = 392,313,896.90 × 279,936,277.90
  4. Step 4: Simplify right side
    279,936,277.90x = 109,822,892,066,630,336
  5. Step 5: Solve for x
    x = 109,822,892,066,630,336/279,936,277.90
  6. Step 6: Final answer
    x = 392,313,896.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.