Home / 215,540,998.80-323,311,498.20-100,537,166.40

Finding the Fourth Proportional to 215,540,998.80, 323,311,498.20 and 100,537,166.40

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Solution

The fourth proportional to 215,540,998.80, 323,311,498.20 and 100,537,166.40 is: 150,805,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,540,998.80 : 323,311,498.20 = 100,537,166.40 : x
  2. Step 2: Convert to fraction form
    215,540,998.80/323,311,498.20 = 100,537,166.40/x
  3. Step 3: Cross multiply
    215,540,998.80x = 323,311,498.20 × 100,537,166.40
  4. Step 4: Simplify right side
    215,540,998.80x = 32,504,821,893,566,700
  5. Step 5: Solve for x
    x = 32,504,821,893,566,700/215,540,998.80
  6. Step 6: Final answer
    x = 150,805,749.60

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1.5x scale

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.