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Finding the Fourth Proportional to 356,339,548.80, 534,509,323.20 and 330,511,516.20

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Solution

The fourth proportional to 356,339,548.80, 534,509,323.20 and 330,511,516.20 is: 495,767,274.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,339,548.80 : 534,509,323.20 = 330,511,516.20 : x
  2. Step 2: Convert to fraction form
    356,339,548.80/534,509,323.20 = 330,511,516.20/x
  3. Step 3: Cross multiply
    356,339,548.80x = 534,509,323.20 × 330,511,516.20
  4. Step 4: Simplify right side
    356,339,548.80x = 176,661,486,833,867,840
  5. Step 5: Solve for x
    x = 176,661,486,833,867,840/356,339,548.80
  6. Step 6: Final answer
    x = 495,767,274.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.