Home / 121,324,903.20-181,987,354.80-39,443,623.20

Finding the Fourth Proportional to 121,324,903.20, 181,987,354.80 and 39,443,623.20

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Solution

The fourth proportional to 121,324,903.20, 181,987,354.80 and 39,443,623.20 is: 59,165,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,324,903.20 : 181,987,354.80 = 39,443,623.20 : x
  2. Step 2: Convert to fraction form
    121,324,903.20/181,987,354.80 = 39,443,623.20/x
  3. Step 3: Cross multiply
    121,324,903.20x = 181,987,354.80 × 39,443,623.20
  4. Step 4: Simplify right side
    121,324,903.20x = 7,178,240,649,895,912
  5. Step 5: Solve for x
    x = 7,178,240,649,895,912/121,324,903.20
  6. Step 6: Final answer
    x = 59,165,434.80

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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.