Home / 20,299,223-28,012,897.76-11,006,776.19

Finding the Fourth Proportional to 20,299,223, 28,012,897.76 and 11,006,776.19

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Solution

The fourth proportional to 20,299,223, 28,012,897.76 and 11,006,776.19 is: 15,189,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299,223 : 28,012,897.76 = 11,006,776.19 : x
  2. Step 2: Convert to fraction form
    20,299,223/28,012,897.76 = 11,006,776.19/x
  3. Step 3: Cross multiply
    20,299,223x = 28,012,897.76 × 11,006,776.19
  4. Step 4: Simplify right side
    20,299,223x = 308,331,696,077,672.31
  5. Step 5: Solve for x
    x = 308,331,696,077,672.31/20,299,223
  6. Step 6: Final answer
    x = 15,189,334.89

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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.