Home / 579,685,290.12-799,969,179.11-315,369,174.80

Finding the Fourth Proportional to 579,685,290.12, 799,969,179.11 and 315,369,174.80

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Solution

The fourth proportional to 579,685,290.12, 799,969,179.11 and 315,369,174.80 is: 435,211,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,685,290.12 : 799,969,179.11 = 315,369,174.80 : x
  2. Step 2: Convert to fraction form
    579,685,290.12/799,969,179.11 = 315,369,174.80/x
  3. Step 3: Cross multiply
    579,685,290.12x = 799,969,179.11 × 315,369,174.80
  4. Step 4: Simplify right side
    579,685,290.12x = 252,285,619,881,777,184
  5. Step 5: Solve for x
    x = 252,285,619,881,777,184/579,685,290.12
  6. Step 6: Final answer
    x = 435,211,353.78

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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.