Home / 20,248,300.11-27,942,636.09-11,429,607.69

Finding the Fourth Proportional to 20,248,300.11, 27,942,636.09 and 11,429,607.69

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Solution

The fourth proportional to 20,248,300.11, 27,942,636.09 and 11,429,607.69 is: 15,772,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248,300.11 : 27,942,636.09 = 11,429,607.69 : x
  2. Step 2: Convert to fraction form
    20,248,300.11/27,942,636.09 = 11,429,607.69/x
  3. Step 3: Cross multiply
    20,248,300.11x = 27,942,636.09 × 11,429,607.69
  4. Step 4: Simplify right side
    20,248,300.11x = 319,373,368,333,135.50
  5. Step 5: Solve for x
    x = 319,373,368,333,135.50/20,248,300.11
  6. Step 6: Final answer
    x = 15,772,848.42

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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.