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Finding the Fourth Proportional to 363,837,999.90, 545,756,999.85 and 200,012,454.30

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Solution

The fourth proportional to 363,837,999.90, 545,756,999.85 and 200,012,454.30 is: 300,018,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,837,999.90 : 545,756,999.85 = 200,012,454.30 : x
  2. Step 2: Convert to fraction form
    363,837,999.90/545,756,999.85 = 200,012,454.30/x
  3. Step 3: Cross multiply
    363,837,999.90x = 545,756,999.85 × 200,012,454.30
  4. Step 4: Simplify right side
    363,837,999.90x = 109,158,196,991,403,248
  5. Step 5: Solve for x
    x = 109,158,196,991,403,248/363,837,999.90
  6. Step 6: Final answer
    x = 300,018,681.45

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