Home / 8,638,928.74-11,921,650.86-4,718,687.50

Finding the Fourth Proportional to 8,638,928.74, 11,921,650.86 and 4,718,687.50

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Solution

The fourth proportional to 8,638,928.74, 11,921,650.86 and 4,718,687.50 is: 6,511,750.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,928.74 : 11,921,650.86 = 4,718,687.50 : x
  2. Step 2: Convert to fraction form
    8,638,928.74/11,921,650.86 = 4,718,687.50/x
  3. Step 3: Cross multiply
    8,638,928.74x = 11,921,650.86 × 4,718,687.50
  4. Step 4: Simplify right side
    8,638,928.74x = 56,254,544,892,446.25
  5. Step 5: Solve for x
    x = 56,254,544,892,446.25/8,638,928.74
  6. Step 6: Final answer
    x = 6,511,750.08

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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.