Home / 159,842,048.81-220,582,028.84-86,503,190.81

Finding the Fourth Proportional to 159,842,048.81, 220,582,028.84 and 86,503,190.81

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Solution

The fourth proportional to 159,842,048.81, 220,582,028.84 and 86,503,190.81 is: 119,374,404.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,842,048.81 : 220,582,028.84 = 86,503,190.81 : x
  2. Step 2: Convert to fraction form
    159,842,048.81/220,582,028.84 = 86,503,190.81/x
  3. Step 3: Cross multiply
    159,842,048.81x = 220,582,028.84 × 86,503,190.81
  4. Step 4: Simplify right side
    159,842,048.81x = 19,081,049,328,468,020
  5. Step 5: Solve for x
    x = 19,081,049,328,468,020/159,842,048.81
  6. Step 6: Final answer
    x = 119,374,404.11

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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.