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Finding the Fourth Proportional to 663,552,302.40, 995,328,453.60 and 636,678,446.40

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Solution

The fourth proportional to 663,552,302.40, 995,328,453.60 and 636,678,446.40 is: 955,017,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,302.40 : 995,328,453.60 = 636,678,446.40 : x
  2. Step 2: Convert to fraction form
    663,552,302.40/995,328,453.60 = 636,678,446.40/x
  3. Step 3: Cross multiply
    663,552,302.40x = 995,328,453.60 × 636,678,446.40
  4. Step 4: Simplify right side
    663,552,302.40x = 633,704,173,495,762,432
  5. Step 5: Solve for x
    x = 633,704,173,495,762,432/663,552,302.40
  6. Step 6: Final answer
    x = 955,017,669.60

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