Home / 20,215,654.80-30,302,815.05-9,964,748.40

Finding the Fourth Proportional to 20,215,654.80, 30,302,815.05 and 9,964,748.40

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Solution

The fourth proportional to 20,215,654.80, 30,302,815.05 and 9,964,748.40 is: 14,936,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,654.80 : 30,302,815.05 = 9,964,748.40 : x
  2. Step 2: Convert to fraction form
    20,215,654.80/30,302,815.05 = 9,964,748.40/x
  3. Step 3: Cross multiply
    20,215,654.80x = 30,302,815.05 × 9,964,748.40
  4. Step 4: Simplify right side
    20,215,654.80x = 301,959,927,784,983.44
  5. Step 5: Solve for x
    x = 301,959,927,784,983.44/20,215,654.80
  6. Step 6: Final answer
    x = 14,936,935.30

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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.