Home / 30,207,939.70-45,311,909.55-10,013,181.70

Finding the Fourth Proportional to 30,207,939.70, 45,311,909.55 and 10,013,181.70

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Solution

The fourth proportional to 30,207,939.70, 45,311,909.55 and 10,013,181.70 is: 15,019,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207,939.70 : 45,311,909.55 = 10,013,181.70 : x
  2. Step 2: Convert to fraction form
    30,207,939.70/45,311,909.55 = 10,013,181.70/x
  3. Step 3: Cross multiply
    30,207,939.70x = 45,311,909.55 × 10,013,181.70
  4. Step 4: Simplify right side
    30,207,939.70x = 453,716,383,498,115.19
  5. Step 5: Solve for x
    x = 453,716,383,498,115.19/30,207,939.70
  6. Step 6: Final answer
    x = 15,019,772.55

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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.