Home / 306,336,740.40-459,505,110.60-220,340,401.20

Finding the Fourth Proportional to 306,336,740.40, 459,505,110.60 and 220,340,401.20

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Solution

The fourth proportional to 306,336,740.40, 459,505,110.60 and 220,340,401.20 is: 330,510,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,336,740.40 : 459,505,110.60 = 220,340,401.20 : x
  2. Step 2: Convert to fraction form
    306,336,740.40/459,505,110.60 = 220,340,401.20/x
  3. Step 3: Cross multiply
    306,336,740.40x = 459,505,110.60 × 220,340,401.20
  4. Step 4: Simplify right side
    306,336,740.40x = 101,247,540,423,054,368
  5. Step 5: Solve for x
    x = 101,247,540,423,054,368/306,336,740.40
  6. Step 6: Final answer
    x = 330,510,601.80

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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.