Home / 143,413,410.40-215,438,980.20-137,992,712.20

Finding the Fourth Proportional to 143,413,410.40, 215,438,980.20 and 137,992,712.20

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Solution

The fourth proportional to 143,413,410.40, 215,438,980.20 and 137,992,712.20 is: 207,295,880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,413,410.40 : 215,438,980.20 = 137,992,712.20 : x
  2. Step 2: Convert to fraction form
    143,413,410.40/215,438,980.20 = 137,992,712.20/x
  3. Step 3: Cross multiply
    143,413,410.40x = 215,438,980.20 × 137,992,712.20
  4. Step 4: Simplify right side
    143,413,410.40x = 29,729,009,191,400,096
  5. Step 5: Solve for x
    x = 29,729,009,191,400,096/143,413,410.40
  6. Step 6: Final answer
    x = 207,295,880.55

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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.