Home / 20,299,220.49-28,012,894.31-11,006,773.68

Finding the Fourth Proportional to 20,299,220.49, 28,012,894.31 and 11,006,773.68

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Solution

The fourth proportional to 20,299,220.49, 28,012,894.31 and 11,006,773.68 is: 15,189,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299,220.49 : 28,012,894.31 = 11,006,773.68 : x
  2. Step 2: Convert to fraction form
    20,299,220.49/28,012,894.31 = 11,006,773.68/x
  3. Step 3: Cross multiply
    20,299,220.49x = 28,012,894.31 × 11,006,773.68
  4. Step 4: Simplify right side
    20,299,220.49x = 308,331,587,924,495.06
  5. Step 5: Solve for x
    x = 308,331,587,924,495.06/20,299,220.49
  6. Step 6: Final answer
    x = 15,189,331.43

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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.