Home / 132,869,011.60-199,154,218.20-68,147,808.40

Finding the Fourth Proportional to 132,869,011.60, 199,154,218.20 and 68,147,808.40

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Solution

The fourth proportional to 132,869,011.60, 199,154,218.20 and 68,147,808.40 is: 102,145,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,869,011.60 : 199,154,218.20 = 68,147,808.40 : x
  2. Step 2: Convert to fraction form
    132,869,011.60/199,154,218.20 = 68,147,808.40/x
  3. Step 3: Cross multiply
    132,869,011.60x = 199,154,218.20 × 68,147,808.40
  4. Step 4: Simplify right side
    132,869,011.60x = 13,571,923,503,945,394
  5. Step 5: Solve for x
    x = 13,571,923,503,945,394/132,869,011.60
  6. Step 6: Final answer
    x = 102,145,137.84

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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.