Home / 12,078,741.28-18,118,111.92-10,880,615.20

Finding the Fourth Proportional to 12,078,741.28, 18,118,111.92 and 10,880,615.20

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Solution

The fourth proportional to 12,078,741.28, 18,118,111.92 and 10,880,615.20 is: 16,320,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,741.28 : 18,118,111.92 = 10,880,615.20 : x
  2. Step 2: Convert to fraction form
    12,078,741.28/18,118,111.92 = 10,880,615.20/x
  3. Step 3: Cross multiply
    12,078,741.28x = 18,118,111.92 × 10,880,615.20
  4. Step 4: Simplify right side
    12,078,741.28x = 197,136,203,952,053.19
  5. Step 5: Solve for x
    x = 197,136,203,952,053.19/12,078,741.28
  6. Step 6: Final answer
    x = 16,320,922.80

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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.