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Finding the Fourth Proportional to 6,471,978.30, 9,711,466.65 and 2,878,299.90

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Solution

The fourth proportional to 6,471,978.30, 9,711,466.65 and 2,878,299.90 is: 4,319,006.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471,978.30 : 9,711,466.65 = 2,878,299.90 : x
  2. Step 2: Convert to fraction form
    6,471,978.30/9,711,466.65 = 2,878,299.90/x
  3. Step 3: Cross multiply
    6,471,978.30x = 9,711,466.65 × 2,878,299.90
  4. Step 4: Simplify right side
    6,471,978.30x = 27,952,513,487,548.34
  5. Step 5: Solve for x
    x = 27,952,513,487,548.34/6,471,978.30
  6. Step 6: Final answer
    x = 4,319,006.06

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