Home / 28,969,709.70-43,454,564.55-18,194,579.40

Finding the Fourth Proportional to 28,969,709.70, 43,454,564.55 and 18,194,579.40

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Solution

The fourth proportional to 28,969,709.70, 43,454,564.55 and 18,194,579.40 is: 27,291,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969,709.70 : 43,454,564.55 = 18,194,579.40 : x
  2. Step 2: Convert to fraction form
    28,969,709.70/43,454,564.55 = 18,194,579.40/x
  3. Step 3: Cross multiply
    28,969,709.70x = 43,454,564.55 × 18,194,579.40
  4. Step 4: Simplify right side
    28,969,709.70x = 790,637,524,997,400.12
  5. Step 5: Solve for x
    x = 790,637,524,997,400.12/28,969,709.70
  6. Step 6: Final answer
    x = 27,291,869.10

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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.