Home / 213,281,207.70-319,921,811.55-188,622,345.30

Finding the Fourth Proportional to 213,281,207.70, 319,921,811.55 and 188,622,345.30

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Solution

The fourth proportional to 213,281,207.70, 319,921,811.55 and 188,622,345.30 is: 282,933,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,281,207.70 : 319,921,811.55 = 188,622,345.30 : x
  2. Step 2: Convert to fraction form
    213,281,207.70/319,921,811.55 = 188,622,345.30/x
  3. Step 3: Cross multiply
    213,281,207.70x = 319,921,811.55 × 188,622,345.30
  4. Step 4: Simplify right side
    213,281,207.70x = 60,344,402,407,185,632
  5. Step 5: Solve for x
    x = 60,344,402,407,185,632/213,281,207.70
  6. Step 6: Final answer
    x = 282,933,517.95

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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.