Home / 20,785,270.96-31,186,625.88-9,262,800.28

Finding the Fourth Proportional to 20,785,270.96, 31,186,625.88 and 9,262,800.28

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Solution

The fourth proportional to 20,785,270.96, 31,186,625.88 and 9,262,800.28 is: 13,898,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,270.96 : 31,186,625.88 = 9,262,800.28 : x
  2. Step 2: Convert to fraction form
    20,785,270.96/31,186,625.88 = 9,262,800.28/x
  3. Step 3: Cross multiply
    20,785,270.96x = 31,186,625.88 × 9,262,800.28
  4. Step 4: Simplify right side
    20,785,270.96x = 288,875,486,933,519.19
  5. Step 5: Solve for x
    x = 288,875,486,933,519.19/20,785,270.96
  6. Step 6: Final answer
    x = 13,898,086.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.