Home / 27,780,299.70-38,336,803.64-15,391,196.34

Finding the Fourth Proportional to 27,780,299.70, 38,336,803.64 and 15,391,196.34

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Solution

The fourth proportional to 27,780,299.70, 38,336,803.64 and 15,391,196.34 is: 21,239,845.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780,299.70 : 38,336,803.64 = 15,391,196.34 : x
  2. Step 2: Convert to fraction form
    27,780,299.70/38,336,803.64 = 15,391,196.34/x
  3. Step 3: Cross multiply
    27,780,299.70x = 38,336,803.64 × 15,391,196.34
  4. Step 4: Simplify right side
    27,780,299.70x = 590,049,271,871,266.62
  5. Step 5: Solve for x
    x = 590,049,271,871,266.62/27,780,299.70
  6. Step 6: Final answer
    x = 21,239,845.44

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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.