Home / 28,981,200.13-39,994,143.27-15,929,796.49

Finding the Fourth Proportional to 28,981,200.13, 39,994,143.27 and 15,929,796.49

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Solution

The fourth proportional to 28,981,200.13, 39,994,143.27 and 15,929,796.49 is: 21,983,167.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981,200.13 : 39,994,143.27 = 15,929,796.49 : x
  2. Step 2: Convert to fraction form
    28,981,200.13/39,994,143.27 = 15,929,796.49/x
  3. Step 3: Cross multiply
    28,981,200.13x = 39,994,143.27 × 15,929,796.49
  4. Step 4: Simplify right side
    28,981,200.13x = 637,098,563,083,003.12
  5. Step 5: Solve for x
    x = 637,098,563,083,003.12/28,981,200.13
  6. Step 6: Final answer
    x = 21,983,167.03

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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.