Home / 501,965,729.57-692,729,508.56-278,956,810.64

Finding the Fourth Proportional to 501,965,729.57, 692,729,508.56 and 278,956,810.64

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Solution

The fourth proportional to 501,965,729.57, 692,729,508.56 and 278,956,810.64 is: 384,969,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,965,729.57 : 692,729,508.56 = 278,956,810.64 : x
  2. Step 2: Convert to fraction form
    501,965,729.57/692,729,508.56 = 278,956,810.64/x
  3. Step 3: Cross multiply
    501,965,729.57x = 692,729,508.56 × 278,956,810.64
  4. Step 4: Simplify right side
    501,965,729.57x = 193,241,614,344,449,184
  5. Step 5: Solve for x
    x = 193,241,614,344,449,184/501,965,729.57
  6. Step 6: Final answer
    x = 384,969,735.90

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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.