Home / 345,451,917.78-518,268,762.90-124,145,615.16

Finding the Fourth Proportional to 345,451,917.78, 518,268,762.90 and 124,145,615.16

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Solution

The fourth proportional to 345,451,917.78, 518,268,762.90 and 124,145,615.16 is: 186,251,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,451,917.78 : 518,268,762.90 = 124,145,615.16 : x
  2. Step 2: Convert to fraction form
    345,451,917.78/518,268,762.90 = 124,145,615.16/x
  3. Step 3: Cross multiply
    345,451,917.78x = 518,268,762.90 × 124,145,615.16
  4. Step 4: Simplify right side
    345,451,917.78x = 64,340,794,388,432,680
  5. Step 5: Solve for x
    x = 64,340,794,388,432,680/345,451,917.78
  6. Step 6: Final answer
    x = 186,251,084.67

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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.