Home / 263,826,011.80-395,739,017.70-221,499,688.60

Finding the Fourth Proportional to 263,826,011.80, 395,739,017.70 and 221,499,688.60

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Solution

The fourth proportional to 263,826,011.80, 395,739,017.70 and 221,499,688.60 is: 332,249,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,826,011.80 : 395,739,017.70 = 221,499,688.60 : x
  2. Step 2: Convert to fraction form
    263,826,011.80/395,739,017.70 = 221,499,688.60/x
  3. Step 3: Cross multiply
    263,826,011.80x = 395,739,017.70 × 221,499,688.60
  4. Step 4: Simplify right side
    263,826,011.80x = 87,656,069,187,419,888
  5. Step 5: Solve for x
    x = 87,656,069,187,419,888/263,826,011.80
  6. Step 6: Final answer
    x = 332,249,532.90

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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.