Home / 288,649,785.60-398,394,573.12-171,240,285.60

Finding the Fourth Proportional to 288,649,785.60, 398,394,573.12 and 171,240,285.60

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Solution

The fourth proportional to 288,649,785.60, 398,394,573.12 and 171,240,285.60 is: 236,345,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,649,785.60 : 398,394,573.12 = 171,240,285.60 : x
  2. Step 2: Convert to fraction form
    288,649,785.60/398,394,573.12 = 171,240,285.60/x
  3. Step 3: Cross multiply
    288,649,785.60x = 398,394,573.12 × 171,240,285.60
  4. Step 4: Simplify right side
    288,649,785.60x = 68,221,200,482,558,880
  5. Step 5: Solve for x
    x = 68,221,200,482,558,880/288,649,785.60
  6. Step 6: Final answer
    x = 236,345,924.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.