Home / 18,103,869.90-27,155,804.85-5,325,666.30

Finding the Fourth Proportional to 18,103,869.90, 27,155,804.85 and 5,325,666.30

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Solution

The fourth proportional to 18,103,869.90, 27,155,804.85 and 5,325,666.30 is: 7,988,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103,869.90 : 27,155,804.85 = 5,325,666.30 : x
  2. Step 2: Convert to fraction form
    18,103,869.90/27,155,804.85 = 5,325,666.30/x
  3. Step 3: Cross multiply
    18,103,869.90x = 27,155,804.85 × 5,325,666.30
  4. Step 4: Simplify right side
    18,103,869.90x = 144,622,754,739,021.56
  5. Step 5: Solve for x
    x = 144,622,754,739,021.56/18,103,869.90
  6. Step 6: Final answer
    x = 7,988,499.45

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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.