Home / 73,117,104.40-109,021,970.28-71,108,257.44

Finding the Fourth Proportional to 73,117,104.40, 109,021,970.28 and 71,108,257.44

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Solution

The fourth proportional to 73,117,104.40, 109,021,970.28 and 71,108,257.44 is: 106,026,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,117,104.40 : 109,021,970.28 = 71,108,257.44 : x
  2. Step 2: Convert to fraction form
    73,117,104.40/109,021,970.28 = 71,108,257.44/x
  3. Step 3: Cross multiply
    73,117,104.40x = 109,021,970.28 × 71,108,257.44
  4. Step 4: Simplify right side
    73,117,104.40x = 7,752,362,329,286,269
  5. Step 5: Solve for x
    x = 7,752,362,329,286,269/73,117,104.40
  6. Step 6: Final answer
    x = 106,026,659.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.