Home / 142,150,977.12-213,239,478.40-39,914,325.84

Finding the Fourth Proportional to 142,150,977.12, 213,239,478.40 and 39,914,325.84

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Solution

The fourth proportional to 142,150,977.12, 213,239,478.40 and 39,914,325.84 is: 59,875,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,150,977.12 : 213,239,478.40 = 39,914,325.84 : x
  2. Step 2: Convert to fraction form
    142,150,977.12/213,239,478.40 = 39,914,325.84/x
  3. Step 3: Cross multiply
    142,150,977.12x = 213,239,478.40 × 39,914,325.84
  4. Step 4: Simplify right side
    142,150,977.12x = 8,511,310,022,809,243
  5. Step 5: Solve for x
    x = 8,511,310,022,809,243/142,150,977.12
  6. Step 6: Final answer
    x = 59,875,142.58

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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.