Home / 278,508,847.56-384,351,424.50-153,065,489.94

Finding the Fourth Proportional to 278,508,847.56, 384,351,424.50 and 153,065,489.94

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Solution

The fourth proportional to 278,508,847.56, 384,351,424.50 and 153,065,489.94 is: 211,235,440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,508,847.56 : 384,351,424.50 = 153,065,489.94 : x
  2. Step 2: Convert to fraction form
    278,508,847.56/384,351,424.50 = 153,065,489.94/x
  3. Step 3: Cross multiply
    278,508,847.56x = 384,351,424.50 × 153,065,489.94
  4. Step 4: Simplify right side
    278,508,847.56x = 58,830,939,100,229,416
  5. Step 5: Solve for x
    x = 58,830,939,100,229,416/278,508,847.56
  6. Step 6: Final answer
    x = 211,235,440.51

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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.