Home / 120,351,257.76-166,080,079.44-65,345,855.52

Finding the Fourth Proportional to 120,351,257.76, 166,080,079.44 and 65,345,855.52

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Solution

The fourth proportional to 120,351,257.76, 166,080,079.44 and 65,345,855.52 is: 90,174,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,351,257.76 : 166,080,079.44 = 65,345,855.52 : x
  2. Step 2: Convert to fraction form
    120,351,257.76/166,080,079.44 = 65,345,855.52/x
  3. Step 3: Cross multiply
    120,351,257.76x = 166,080,079.44 × 65,345,855.52
  4. Step 4: Simplify right side
    120,351,257.76x = 10,852,644,875,836,362
  5. Step 5: Solve for x
    x = 10,852,644,875,836,362/120,351,257.76
  6. Step 6: Final answer
    x = 90,174,752.45

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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.