Home / 220,176,217.40-330,180,345.30-66,771,289.40

Finding the Fourth Proportional to 220,176,217.40, 330,180,345.30 and 66,771,289.40

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Solution

The fourth proportional to 220,176,217.40, 330,180,345.30 and 66,771,289.40 is: 100,131,465.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,176,217.40 : 330,180,345.30 = 66,771,289.40 : x
  2. Step 2: Convert to fraction form
    220,176,217.40/330,180,345.30 = 66,771,289.40/x
  3. Step 3: Cross multiply
    220,176,217.40x = 330,180,345.30 × 66,771,289.40
  4. Step 4: Simplify right side
    220,176,217.40x = 22,046,567,390,218,232
  5. Step 5: Solve for x
    x = 22,046,567,390,218,232/220,176,217.40
  6. Step 6: Final answer
    x = 100,131,465.83

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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.