Home / 15,515,485.94-21,411,370.44-8,992,898.78

Finding the Fourth Proportional to 15,515,485.94, 21,411,370.44 and 8,992,898.78

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Solution

The fourth proportional to 15,515,485.94, 21,411,370.44 and 8,992,898.78 is: 12,410,200.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515,485.94 : 21,411,370.44 = 8,992,898.78 : x
  2. Step 2: Convert to fraction form
    15,515,485.94/21,411,370.44 = 8,992,898.78/x
  3. Step 3: Cross multiply
    15,515,485.94x = 21,411,370.44 × 8,992,898.78
  4. Step 4: Simplify right side
    15,515,485.94x = 192,550,287,000,947.22
  5. Step 5: Solve for x
    x = 192,550,287,000,947.22/15,515,485.94
  6. Step 6: Final answer
    x = 12,410,200.22

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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.