Home / 120,649,301.40-181,021,191.30-43,980,079.80

Finding the Fourth Proportional to 120,649,301.40, 181,021,191.30 and 43,980,079.80

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Solution

The fourth proportional to 120,649,301.40, 181,021,191.30 and 43,980,079.80 is: 65,987,339.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,649,301.40 : 181,021,191.30 = 43,980,079.80 : x
  2. Step 2: Convert to fraction form
    120,649,301.40/181,021,191.30 = 43,980,079.80/x
  3. Step 3: Cross multiply
    120,649,301.40x = 181,021,191.30 × 43,980,079.80
  4. Step 4: Simplify right side
    120,649,301.40x = 7,961,326,438,865,066
  5. Step 5: Solve for x
    x = 7,961,326,438,865,066/120,649,301.40
  6. Step 6: Final answer
    x = 65,987,339.72

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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.