Home / 647,115,539.04-969,132,516.30-413,221,769.28

Finding the Fourth Proportional to 647,115,539.04, 969,132,516.30 and 413,221,769.28

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Solution

The fourth proportional to 647,115,539.04, 969,132,516.30 and 413,221,769.28 is: 618,848,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,115,539.04 : 969,132,516.30 = 413,221,769.28 : x
  2. Step 2: Convert to fraction form
    647,115,539.04/969,132,516.30 = 413,221,769.28/x
  3. Step 3: Cross multiply
    647,115,539.04x = 969,132,516.30 × 413,221,769.28
  4. Step 4: Simplify right side
    647,115,539.04x = 400,466,653,052,264,384
  5. Step 5: Solve for x
    x = 400,466,653,052,264,384/647,115,539.04
  6. Step 6: Final answer
    x = 618,848,766.40

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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.