Home / 371,640,534.59-512,877,422.28-212,901,336.94

Finding the Fourth Proportional to 371,640,534.59, 512,877,422.28 and 212,901,336.94

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Solution

The fourth proportional to 371,640,534.59, 512,877,422.28 and 212,901,336.94 is: 293,811,569.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,640,534.59 : 512,877,422.28 = 212,901,336.94 : x
  2. Step 2: Convert to fraction form
    371,640,534.59/512,877,422.28 = 212,901,336.94/x
  3. Step 3: Cross multiply
    371,640,534.59x = 512,877,422.28 × 212,901,336.94
  4. Step 4: Simplify right side
    371,640,534.59x = 109,192,288,889,752,928
  5. Step 5: Solve for x
    x = 109,192,288,889,752,928/371,640,534.59
  6. Step 6: Final answer
    x = 293,811,569.86

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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.