Home / 426,492,074.20-639,738,111.30-196,909,562.20

Finding the Fourth Proportional to 426,492,074.20, 639,738,111.30 and 196,909,562.20

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Solution

The fourth proportional to 426,492,074.20, 639,738,111.30 and 196,909,562.20 is: 295,364,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,492,074.20 : 639,738,111.30 = 196,909,562.20 : x
  2. Step 2: Convert to fraction form
    426,492,074.20/639,738,111.30 = 196,909,562.20/x
  3. Step 3: Cross multiply
    426,492,074.20x = 639,738,111.30 × 196,909,562.20
  4. Step 4: Simplify right side
    426,492,074.20x = 125,970,551,418,737,856
  5. Step 5: Solve for x
    x = 125,970,551,418,737,856/426,492,074.20
  6. Step 6: Final answer
    x = 295,364,343.30

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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.