Home / 120,975,009.40-181,462,514.10-108,503,860.60

Finding the Fourth Proportional to 120,975,009.40, 181,462,514.10 and 108,503,860.60

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Solution

The fourth proportional to 120,975,009.40, 181,462,514.10 and 108,503,860.60 is: 162,755,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,975,009.40 : 181,462,514.10 = 108,503,860.60 : x
  2. Step 2: Convert to fraction form
    120,975,009.40/181,462,514.10 = 108,503,860.60/x
  3. Step 3: Cross multiply
    120,975,009.40x = 181,462,514.10 × 108,503,860.60
  4. Step 4: Simplify right side
    120,975,009.40x = 19,689,383,334,031,932
  5. Step 5: Solve for x
    x = 19,689,383,334,031,932/120,975,009.40
  6. Step 6: Final answer
    x = 162,755,790.90

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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.