Home / 18,576,043.70-27,864,065.55-7,209,111.20

Finding the Fourth Proportional to 18,576,043.70, 27,864,065.55 and 7,209,111.20

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Solution

The fourth proportional to 18,576,043.70, 27,864,065.55 and 7,209,111.20 is: 10,813,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576,043.70 : 27,864,065.55 = 7,209,111.20 : x
  2. Step 2: Convert to fraction form
    18,576,043.70/27,864,065.55 = 7,209,111.20/x
  3. Step 3: Cross multiply
    18,576,043.70x = 27,864,065.55 × 7,209,111.20
  4. Step 4: Simplify right side
    18,576,043.70x = 200,875,147,034,039.16
  5. Step 5: Solve for x
    x = 200,875,147,034,039.16/18,576,043.70
  6. Step 6: Final answer
    x = 10,813,666.80

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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.