Home / 120,303,805.15-166,014,955.58-68,091,719.81

Finding the Fourth Proportional to 120,303,805.15, 166,014,955.58 and 68,091,719.81

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Solution

The fourth proportional to 120,303,805.15, 166,014,955.58 and 68,091,719.81 is: 93,964,142.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,303,805.15 : 166,014,955.58 = 68,091,719.81 : x
  2. Step 2: Convert to fraction form
    120,303,805.15/166,014,955.58 = 68,091,719.81/x
  3. Step 3: Cross multiply
    120,303,805.15x = 166,014,955.58 × 68,091,719.81
  4. Step 4: Simplify right side
    120,303,805.15x = 11,304,243,838,452,424
  5. Step 5: Solve for x
    x = 11,304,243,838,452,424/120,303,805.15
  6. Step 6: Final answer
    x = 93,964,142.07

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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.