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Finding the Fourth Proportional to 580,630,221.60, 869,750,938.80 and 399,082,394.40

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Solution

The fourth proportional to 580,630,221.60, 869,750,938.80 and 399,082,394.40 is: 597,802,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,630,221.60 : 869,750,938.80 = 399,082,394.40 : x
  2. Step 2: Convert to fraction form
    580,630,221.60/869,750,938.80 = 399,082,394.40/x
  3. Step 3: Cross multiply
    580,630,221.60x = 869,750,938.80 × 399,082,394.40
  4. Step 4: Simplify right side
    580,630,221.60x = 347,102,287,187,951,808
  5. Step 5: Solve for x
    x = 347,102,287,187,951,808/580,630,221.60
  6. Step 6: Final answer
    x = 597,802,653.52

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