Home / 19,701,101.20-29,551,651.80-12,142,829.20

Finding the Fourth Proportional to 19,701,101.20, 29,551,651.80 and 12,142,829.20

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Solution

The fourth proportional to 19,701,101.20, 29,551,651.80 and 12,142,829.20 is: 18,214,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701,101.20 : 29,551,651.80 = 12,142,829.20 : x
  2. Step 2: Convert to fraction form
    19,701,101.20/29,551,651.80 = 12,142,829.20/x
  3. Step 3: Cross multiply
    19,701,101.20x = 29,551,651.80 × 12,142,829.20
  4. Step 4: Simplify right side
    19,701,101.20x = 358,840,660,385,272.56
  5. Step 5: Solve for x
    x = 358,840,660,385,272.56/19,701,101.20
  6. Step 6: Final answer
    x = 18,214,243.80

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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.