Home / 647,591,838.21-971,455,805.82-210,926,524.41

Finding the Fourth Proportional to 647,591,838.21, 971,455,805.82 and 210,926,524.41

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Solution

The fourth proportional to 647,591,838.21, 971,455,805.82 and 210,926,524.41 is: 316,411,950.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,591,838.21 : 971,455,805.82 = 210,926,524.41 : x
  2. Step 2: Convert to fraction form
    647,591,838.21/971,455,805.82 = 210,926,524.41/x
  3. Step 3: Cross multiply
    647,591,838.21x = 971,455,805.82 × 210,926,524.41
  4. Step 4: Simplify right side
    647,591,838.21x = 204,905,796,739,528,448
  5. Step 5: Solve for x
    x = 204,905,796,739,528,448/647,591,838.21
  6. Step 6: Final answer
    x = 316,411,950.63

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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.