Home / 120,390,308.46-166,133,065.77-68,179,717.89

Finding the Fourth Proportional to 120,390,308.46, 166,133,065.77 and 68,179,717.89

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Solution

The fourth proportional to 120,390,308.46, 166,133,065.77 and 68,179,717.89 is: 94,084,861.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,390,308.46 : 166,133,065.77 = 68,179,717.89 : x
  2. Step 2: Convert to fraction form
    120,390,308.46/166,133,065.77 = 68,179,717.89/x
  3. Step 3: Cross multiply
    120,390,308.46x = 166,133,065.77 × 68,179,717.89
  4. Step 4: Simplify right side
    120,390,308.46x = 11,326,905,556,399,416
  5. Step 5: Solve for x
    x = 11,326,905,556,399,416/120,390,308.46
  6. Step 6: Final answer
    x = 94,084,861.99

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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.