Home / 647,591,833.71-971,455,799.07-210,926,519.91

Finding the Fourth Proportional to 647,591,833.71, 971,455,799.07 and 210,926,519.91

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Solution

The fourth proportional to 647,591,833.71, 971,455,799.07 and 210,926,519.91 is: 316,411,943.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,591,833.71 : 971,455,799.07 = 210,926,519.91 : x
  2. Step 2: Convert to fraction form
    647,591,833.71/971,455,799.07 = 210,926,519.91/x
  3. Step 3: Cross multiply
    647,591,833.71x = 971,455,799.07 × 210,926,519.91
  4. Step 4: Simplify right side
    647,591,833.71x = 204,905,790,944,223,328
  5. Step 5: Solve for x
    x = 204,905,790,944,223,328/647,591,833.71
  6. Step 6: Final answer
    x = 316,411,943.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.