Home / 8,638,912.92-11,921,628.95-4,718,671.54

Finding the Fourth Proportional to 8,638,912.92, 11,921,628.95 and 4,718,671.54

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Solution

The fourth proportional to 8,638,912.92, 11,921,628.95 and 4,718,671.54 is: 6,511,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,912.92 : 11,921,628.95 = 4,718,671.54 : x
  2. Step 2: Convert to fraction form
    8,638,912.92/11,921,628.95 = 4,718,671.54/x
  3. Step 3: Cross multiply
    8,638,912.92x = 11,921,628.95 × 4,718,671.54
  4. Step 4: Simplify right side
    8,638,912.92x = 56,254,251,236,805.08
  5. Step 5: Solve for x
    x = 56,254,251,236,805.08/8,638,912.92
  6. Step 6: Final answer
    x = 6,511,728.01

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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.