Home / 72,753,345.44-109,121,172.96-45,462,073.76

Finding the Fourth Proportional to 72,753,345.44, 109,121,172.96 and 45,462,073.76

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Solution

The fourth proportional to 72,753,345.44, 109,121,172.96 and 45,462,073.76 is: 68,187,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,753,345.44 : 109,121,172.96 = 45,462,073.76 : x
  2. Step 2: Convert to fraction form
    72,753,345.44/109,121,172.96 = 45,462,073.76/x
  3. Step 3: Cross multiply
    72,753,345.44x = 109,121,172.96 × 45,462,073.76
  4. Step 4: Simplify right side
    72,753,345.44x = 4,960,874,813,885,237
  5. Step 5: Solve for x
    x = 4,960,874,813,885,237/72,753,345.44
  6. Step 6: Final answer
    x = 68,187,583.46

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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.