Home / 20,369,015.38-28,108,680.45-11,201,658.10

Finding the Fourth Proportional to 20,369,015.38, 28,108,680.45 and 11,201,658.10

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Solution

The fourth proportional to 20,369,015.38, 28,108,680.45 and 11,201,658.10 is: 15,457,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369,015.38 : 28,108,680.45 = 11,201,658.10 : x
  2. Step 2: Convert to fraction form
    20,369,015.38/28,108,680.45 = 11,201,658.10/x
  3. Step 3: Cross multiply
    20,369,015.38x = 28,108,680.45 × 11,201,658.10
  4. Step 4: Simplify right side
    20,369,015.38x = 314,863,828,043,054.12
  5. Step 5: Solve for x
    x = 314,863,828,043,054.12/20,369,015.38
  6. Step 6: Final answer
    x = 15,457,979.79

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1.5x scale

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.