Home / 121,014,109.20-181,521,163.80-39,132,829.20

Finding the Fourth Proportional to 121,014,109.20, 181,521,163.80 and 39,132,829.20

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Solution

The fourth proportional to 121,014,109.20, 181,521,163.80 and 39,132,829.20 is: 58,699,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,014,109.20 : 181,521,163.80 = 39,132,829.20 : x
  2. Step 2: Convert to fraction form
    121,014,109.20/181,521,163.80 = 39,132,829.20/x
  3. Step 3: Cross multiply
    121,014,109.20x = 181,521,163.80 × 39,132,829.20
  4. Step 4: Simplify right side
    121,014,109.20x = 7,103,436,699,170,624
  5. Step 5: Solve for x
    x = 7,103,436,699,170,624/121,014,109.20
  6. Step 6: Final answer
    x = 58,699,243.80

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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.