Home / 295,245,813.20-442,868,719.80-213,191,322.80

Finding the Fourth Proportional to 295,245,813.20, 442,868,719.80 and 213,191,322.80

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Solution

The fourth proportional to 295,245,813.20, 442,868,719.80 and 213,191,322.80 is: 319,786,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,245,813.20 : 442,868,719.80 = 213,191,322.80 : x
  2. Step 2: Convert to fraction form
    295,245,813.20/442,868,719.80 = 213,191,322.80/x
  3. Step 3: Cross multiply
    295,245,813.20x = 442,868,719.80 × 213,191,322.80
  4. Step 4: Simplify right side
    295,245,813.20x = 94,415,768,200,904,560
  5. Step 5: Solve for x
    x = 94,415,768,200,904,560/295,245,813.20
  6. Step 6: Final answer
    x = 319,786,984.20

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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.