Home / 12,028,510.80-18,042,766.20-11,178,205.20

Finding the Fourth Proportional to 12,028,510.80, 18,042,766.20 and 11,178,205.20

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Solution

The fourth proportional to 12,028,510.80, 18,042,766.20 and 11,178,205.20 is: 16,767,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,028,510.80 : 18,042,766.20 = 11,178,205.20 : x
  2. Step 2: Convert to fraction form
    12,028,510.80/18,042,766.20 = 11,178,205.20/x
  3. Step 3: Cross multiply
    12,028,510.80x = 18,042,766.20 × 11,178,205.20
  4. Step 4: Simplify right side
    12,028,510.80x = 201,685,742,959,224.22
  5. Step 5: Solve for x
    x = 201,685,742,959,224.22/12,028,510.80
  6. Step 6: Final answer
    x = 16,767,307.80

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Similar ratio
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1.5x scale

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.