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Finding the Fourth Proportional to 608,978,780.64, 840,398,779.44 and 330,523,642.08

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Solution

The fourth proportional to 608,978,780.64, 840,398,779.44 and 330,523,642.08 is: 456,127,001.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,978,780.64 : 840,398,779.44 = 330,523,642.08 : x
  2. Step 2: Convert to fraction form
    608,978,780.64/840,398,779.44 = 330,523,642.08/x
  3. Step 3: Cross multiply
    608,978,780.64x = 840,398,779.44 × 330,523,642.08
  4. Step 4: Simplify right side
    608,978,780.64x = 277,771,665,380,095,424
  5. Step 5: Solve for x
    x = 277,771,665,380,095,424/608,978,780.64
  6. Step 6: Final answer
    x = 456,127,001.81

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