Home / 28,026,417.20-42,019,449.36-17,221,393.36

Finding the Fourth Proportional to 28,026,417.20, 42,019,449.36 and 17,221,393.36

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Solution

The fourth proportional to 28,026,417.20, 42,019,449.36 and 17,221,393.36 is: 25,819,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026,417.20 : 42,019,449.36 = 17,221,393.36 : x
  2. Step 2: Convert to fraction form
    28,026,417.20/42,019,449.36 = 17,221,393.36/x
  3. Step 3: Cross multiply
    28,026,417.20x = 42,019,449.36 × 17,221,393.36
  4. Step 4: Simplify right side
    28,026,417.20x = 723,633,466,199,160.25
  5. Step 5: Solve for x
    x = 723,633,466,199,160.25/28,026,417.20
  6. Step 6: Final answer
    x = 25,819,692.22

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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.