Home / 213,655,179.60-320,482,769.40-199,322,456.40

Finding the Fourth Proportional to 213,655,179.60, 320,482,769.40 and 199,322,456.40

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Solution

The fourth proportional to 213,655,179.60, 320,482,769.40 and 199,322,456.40 is: 298,983,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,655,179.60 : 320,482,769.40 = 199,322,456.40 : x
  2. Step 2: Convert to fraction form
    213,655,179.60/320,482,769.40 = 199,322,456.40/x
  3. Step 3: Cross multiply
    213,655,179.60x = 320,482,769.40 × 199,322,456.40
  4. Step 4: Simplify right side
    213,655,179.60x = 63,879,412,830,682,752
  5. Step 5: Solve for x
    x = 63,879,412,830,682,752/213,655,179.60
  6. Step 6: Final answer
    x = 298,983,684.60

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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.