Home / 18,188,457.40-27,282,686.10-7,400,205.10

Finding the Fourth Proportional to 18,188,457.40, 27,282,686.10 and 7,400,205.10

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Solution

The fourth proportional to 18,188,457.40, 27,282,686.10 and 7,400,205.10 is: 11,100,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188,457.40 : 27,282,686.10 = 7,400,205.10 : x
  2. Step 2: Convert to fraction form
    18,188,457.40/27,282,686.10 = 7,400,205.10/x
  3. Step 3: Cross multiply
    18,188,457.40x = 27,282,686.10 × 7,400,205.10
  4. Step 4: Simplify right side
    18,188,457.40x = 201,897,472,818,919.12
  5. Step 5: Solve for x
    x = 201,897,472,818,919.12/18,188,457.40
  6. Step 6: Final answer
    x = 11,100,307.65

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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.