Home / 30,207,939.20-45,311,908.80-10,013,181.20

Finding the Fourth Proportional to 30,207,939.20, 45,311,908.80 and 10,013,181.20

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Solution

The fourth proportional to 30,207,939.20, 45,311,908.80 and 10,013,181.20 is: 15,019,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207,939.20 : 45,311,908.80 = 10,013,181.20 : x
  2. Step 2: Convert to fraction form
    30,207,939.20/45,311,908.80 = 10,013,181.20/x
  3. Step 3: Cross multiply
    30,207,939.20x = 45,311,908.80 × 10,013,181.20
  4. Step 4: Simplify right side
    30,207,939.20x = 453,716,353,332,274.50
  5. Step 5: Solve for x
    x = 453,716,353,332,274.50/30,207,939.20
  6. Step 6: Final answer
    x = 15,019,771.80

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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.