Home / 221,423,632.40-332,135,448.60-85,113,462.80

Finding the Fourth Proportional to 221,423,632.40, 332,135,448.60 and 85,113,462.80

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Solution

The fourth proportional to 221,423,632.40, 332,135,448.60 and 85,113,462.80 is: 127,670,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,423,632.40 : 332,135,448.60 = 85,113,462.80 : x
  2. Step 2: Convert to fraction form
    221,423,632.40/332,135,448.60 = 85,113,462.80/x
  3. Step 3: Cross multiply
    221,423,632.40x = 332,135,448.60 × 85,113,462.80
  4. Step 4: Simplify right side
    221,423,632.40x = 28,269,198,148,977,412
  5. Step 5: Solve for x
    x = 28,269,198,148,977,412/221,423,632.40
  6. Step 6: Final answer
    x = 127,670,194.20

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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.