Home / 647,591,834.71-971,455,800.57-210,926,520.91

Finding the Fourth Proportional to 647,591,834.71, 971,455,800.57 and 210,926,520.91

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Solution

The fourth proportional to 647,591,834.71, 971,455,800.57 and 210,926,520.91 is: 316,411,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,591,834.71 : 971,455,800.57 = 210,926,520.91 : x
  2. Step 2: Convert to fraction form
    647,591,834.71/971,455,800.57 = 210,926,520.91/x
  3. Step 3: Cross multiply
    647,591,834.71x = 971,455,800.57 × 210,926,520.91
  4. Step 4: Simplify right side
    647,591,834.71x = 204,905,792,232,068,896
  5. Step 5: Solve for x
    x = 204,905,792,232,068,896/647,591,834.71
  6. Step 6: Final answer
    x = 316,411,945.38

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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.