Home / 257,554,067.49-355,517,063.64-153,131,889.71

Finding the Fourth Proportional to 257,554,067.49, 355,517,063.64 and 153,131,889.71

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Solution

The fourth proportional to 257,554,067.49, 355,517,063.64 and 153,131,889.71 is: 211,376,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,554,067.49 : 355,517,063.64 = 153,131,889.71 : x
  2. Step 2: Convert to fraction form
    257,554,067.49/355,517,063.64 = 153,131,889.71/x
  3. Step 3: Cross multiply
    257,554,067.49x = 355,517,063.64 × 153,131,889.71
  4. Step 4: Simplify right side
    257,554,067.49x = 54,440,999,777,565,952
  5. Step 5: Solve for x
    x = 54,440,999,777,565,952/257,554,067.49
  6. Step 6: Final answer
    x = 211,376,975.36

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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.