Home / 8,638,156.71-11,920,737.90-4,916,806.01

Finding the Fourth Proportional to 8,638,156.71, 11,920,737.90 and 4,916,806.01

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Solution

The fourth proportional to 8,638,156.71, 11,920,737.90 and 4,916,806.01 is: 6,785,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,156.71 : 11,920,737.90 = 4,916,806.01 : x
  2. Step 2: Convert to fraction form
    8,638,156.71/11,920,737.90 = 4,916,806.01/x
  3. Step 3: Cross multiply
    8,638,156.71x = 11,920,737.90 × 4,916,806.01
  4. Step 4: Simplify right side
    8,638,156.71x = 58,611,955,753,891.88
  5. Step 5: Solve for x
    x = 58,611,955,753,891.88/8,638,156.71
  6. Step 6: Final answer
    x = 6,785,238.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.