Home / 402,410,074.20-603,615,111.30-198,336,730.20

Finding the Fourth Proportional to 402,410,074.20, 603,615,111.30 and 198,336,730.20

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Solution

The fourth proportional to 402,410,074.20, 603,615,111.30 and 198,336,730.20 is: 297,505,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,410,074.20 : 603,615,111.30 = 198,336,730.20 : x
  2. Step 2: Convert to fraction form
    402,410,074.20/603,615,111.30 = 198,336,730.20/x
  3. Step 3: Cross multiply
    402,410,074.20x = 603,615,111.30 × 198,336,730.20
  4. Step 4: Simplify right side
    402,410,074.20x = 119,719,047,474,551,056
  5. Step 5: Solve for x
    x = 119,719,047,474,551,056/402,410,074.20
  6. Step 6: Final answer
    x = 297,505,095.30

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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.