Home / 120,649,307.40-181,021,200.30-43,980,085.80

Finding the Fourth Proportional to 120,649,307.40, 181,021,200.30 and 43,980,085.80

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Solution

The fourth proportional to 120,649,307.40, 181,021,200.30 and 43,980,085.80 is: 65,987,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,649,307.40 : 181,021,200.30 = 43,980,085.80 : x
  2. Step 2: Convert to fraction form
    120,649,307.40/181,021,200.30 = 43,980,085.80/x
  3. Step 3: Cross multiply
    120,649,307.40x = 181,021,200.30 × 43,980,085.80
  4. Step 4: Simplify right side
    120,649,307.40x = 7,961,327,920,812,986
  5. Step 5: Solve for x
    x = 7,961,327,920,812,986/120,649,307.40
  6. Step 6: Final answer
    x = 65,987,348.72

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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.