Home / 18,084,136.80-27,126,205.20-10,431,386.40

Finding the Fourth Proportional to 18,084,136.80, 27,126,205.20 and 10,431,386.40

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Solution

The fourth proportional to 18,084,136.80, 27,126,205.20 and 10,431,386.40 is: 15,647,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084,136.80 : 27,126,205.20 = 10,431,386.40 : x
  2. Step 2: Convert to fraction form
    18,084,136.80/27,126,205.20 = 10,431,386.40/x
  3. Step 3: Cross multiply
    18,084,136.80x = 27,126,205.20 × 10,431,386.40
  4. Step 4: Simplify right side
    18,084,136.80x = 282,963,928,006,889.31
  5. Step 5: Solve for x
    x = 282,963,928,006,889.31/18,084,136.80
  6. Step 6: Final answer
    x = 15,647,079.60

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Double scale
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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.