Home / 647,230,946.40-970,874,758.80-187,215,616.80

Finding the Fourth Proportional to 647,230,946.40, 970,874,758.80 and 187,215,616.80

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Solution

The fourth proportional to 647,230,946.40, 970,874,758.80 and 187,215,616.80 is: 280,831,622.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,230,946.40 : 970,874,758.80 = 187,215,616.80 : x
  2. Step 2: Convert to fraction form
    647,230,946.40/970,874,758.80 = 187,215,616.80/x
  3. Step 3: Cross multiply
    647,230,946.40x = 970,874,758.80 × 187,215,616.80
  4. Step 4: Simplify right side
    647,230,946.40x = 181,762,916,804,293,216
  5. Step 5: Solve for x
    x = 181,762,916,804,293,216/647,230,946.40
  6. Step 6: Final answer
    x = 280,831,622.49

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1.5x scale

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.