Home / 295,893,306.72-407,998,609.20-221,314,861.98

Finding the Fourth Proportional to 295,893,306.72, 407,998,609.20 and 221,314,861.98

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Solution

The fourth proportional to 295,893,306.72, 407,998,609.20 and 221,314,861.98 is: 305,164,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,893,306.72 : 407,998,609.20 = 221,314,861.98 : x
  2. Step 2: Convert to fraction form
    295,893,306.72/407,998,609.20 = 221,314,861.98/x
  3. Step 3: Cross multiply
    295,893,306.72x = 407,998,609.20 × 221,314,861.98
  4. Step 4: Simplify right side
    295,893,306.72x = 90,296,155,883,129,952
  5. Step 5: Solve for x
    x = 90,296,155,883,129,952/295,893,306.72
  6. Step 6: Final answer
    x = 305,164,577.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.