Home / 142,015,217.20-213,022,825.80-103,751,465.20

Finding the Fourth Proportional to 142,015,217.20, 213,022,825.80 and 103,751,465.20

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Solution

The fourth proportional to 142,015,217.20, 213,022,825.80 and 103,751,465.20 is: 155,627,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,015,217.20 : 213,022,825.80 = 103,751,465.20 : x
  2. Step 2: Convert to fraction form
    142,015,217.20/213,022,825.80 = 103,751,465.20/x
  3. Step 3: Cross multiply
    142,015,217.20x = 213,022,825.80 × 103,751,465.20
  4. Step 4: Simplify right side
    142,015,217.20x = 22,101,430,297,794,364
  5. Step 5: Solve for x
    x = 22,101,430,297,794,364/142,015,217.20
  6. Step 6: Final answer
    x = 155,627,197.80

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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.