Home / 20,830,227.56-28,739,495.95-13,476,415.76

Finding the Fourth Proportional to 20,830,227.56, 28,739,495.95 and 13,476,415.76

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Solution

The fourth proportional to 20,830,227.56, 28,739,495.95 and 13,476,415.76 is: 18,593,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,227.56 : 28,739,495.95 = 13,476,415.76 : x
  2. Step 2: Convert to fraction form
    20,830,227.56/28,739,495.95 = 13,476,415.76/x
  3. Step 3: Cross multiply
    20,830,227.56x = 28,739,495.95 × 13,476,415.76
  4. Step 4: Simplify right side
    20,830,227.56x = 387,305,395,977,647.69
  5. Step 5: Solve for x
    x = 387,305,395,977,647.69/20,830,227.56
  6. Step 6: Final answer
    x = 18,593,430.87

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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.