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Finding the Fourth Proportional to 276,914,779.20, 415,372,168.80 and 133,587,547.20

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Solution

The fourth proportional to 276,914,779.20, 415,372,168.80 and 133,587,547.20 is: 200,381,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,914,779.20 : 415,372,168.80 = 133,587,547.20 : x
  2. Step 2: Convert to fraction form
    276,914,779.20/415,372,168.80 = 133,587,547.20/x
  3. Step 3: Cross multiply
    276,914,779.20x = 415,372,168.80 × 133,587,547.20
  4. Step 4: Simplify right side
    276,914,779.20x = 55,488,549,205,136,368
  5. Step 5: Solve for x
    x = 55,488,549,205,136,368/276,914,779.20
  6. Step 6: Final answer
    x = 200,381,320.80

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