Home / 20,105,339.40-27,755,005.05-12,377,006.28

Finding the Fourth Proportional to 20,105,339.40, 27,755,005.05 and 12,377,006.28

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Solution

The fourth proportional to 20,105,339.40, 27,755,005.05 and 12,377,006.28 is: 17,086,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105,339.40 : 27,755,005.05 = 12,377,006.28 : x
  2. Step 2: Convert to fraction form
    20,105,339.40/27,755,005.05 = 12,377,006.28/x
  3. Step 3: Cross multiply
    20,105,339.40x = 27,755,005.05 × 12,377,006.28
  4. Step 4: Simplify right side
    20,105,339.40x = 343,523,871,805,281.69
  5. Step 5: Solve for x
    x = 343,523,871,805,281.69/20,105,339.40
  6. Step 6: Final answer
    x = 17,086,201.08

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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.