Home / 647,260,462.80-971,016,665.40-187,213,640.40

Finding the Fourth Proportional to 647,260,462.80, 971,016,665.40 and 187,213,640.40

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Solution

The fourth proportional to 647,260,462.80, 971,016,665.40 and 187,213,640.40 is: 280,856,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,260,462.80 : 971,016,665.40 = 187,213,640.40 : x
  2. Step 2: Convert to fraction form
    647,260,462.80/971,016,665.40 = 187,213,640.40/x
  3. Step 3: Cross multiply
    647,260,462.80x = 971,016,665.40 × 187,213,640.40
  4. Step 4: Simplify right side
    647,260,462.80x = 181,787,564,818,602,720
  5. Step 5: Solve for x
    x = 181,787,564,818,602,720/647,260,462.80
  6. Step 6: Final answer
    x = 280,856,896.51

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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.