Home / 278,508,837.55-384,351,410.56-153,065,479.87

Finding the Fourth Proportional to 278,508,837.55, 384,351,410.56 and 153,065,479.87

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Solution

The fourth proportional to 278,508,837.55, 384,351,410.56 and 153,065,479.87 is: 211,235,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,508,837.55 : 384,351,410.56 = 153,065,479.87 : x
  2. Step 2: Convert to fraction form
    278,508,837.55/384,351,410.56 = 153,065,479.87/x
  3. Step 3: Cross multiply
    278,508,837.55x = 384,351,410.56 × 153,065,479.87
  4. Step 4: Simplify right side
    278,508,837.55x = 58,830,933,096,077,784
  5. Step 5: Solve for x
    x = 58,830,933,096,077,784/278,508,837.55
  6. Step 6: Final answer
    x = 211,235,426.54

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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.