Home / 8,262,571.20-12,393,856.80-7,947,643.20

Finding the Fourth Proportional to 8,262,571.20, 12,393,856.80 and 7,947,643.20

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Solution

The fourth proportional to 8,262,571.20, 12,393,856.80 and 7,947,643.20 is: 11,921,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262,571.20 : 12,393,856.80 = 7,947,643.20 : x
  2. Step 2: Convert to fraction form
    8,262,571.20/12,393,856.80 = 7,947,643.20/x
  3. Step 3: Cross multiply
    8,262,571.20x = 12,393,856.80 × 7,947,643.20
  4. Step 4: Simplify right side
    8,262,571.20x = 98,501,951,718,293.77
  5. Step 5: Solve for x
    x = 98,501,951,718,293.77/8,262,571.20
  6. Step 6: Final answer
    x = 11,921,464.80

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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.