Home / 312,911,029.80-469,366,544.70-231,281,692.20

Finding the Fourth Proportional to 312,911,029.80, 469,366,544.70 and 231,281,692.20

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Solution

The fourth proportional to 312,911,029.80, 469,366,544.70 and 231,281,692.20 is: 346,922,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,911,029.80 : 469,366,544.70 = 231,281,692.20 : x
  2. Step 2: Convert to fraction form
    312,911,029.80/469,366,544.70 = 231,281,692.20/x
  3. Step 3: Cross multiply
    312,911,029.80x = 469,366,544.70 × 231,281,692.20
  4. Step 4: Simplify right side
    312,911,029.80x = 108,555,888,720,282,928
  5. Step 5: Solve for x
    x = 108,555,888,720,282,928/312,911,029.80
  6. Step 6: Final answer
    x = 346,922,538.30

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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.