Home / 142,024,121.40-213,036,182.10-51,135,900.60

Finding the Fourth Proportional to 142,024,121.40, 213,036,182.10 and 51,135,900.60

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Solution

The fourth proportional to 142,024,121.40, 213,036,182.10 and 51,135,900.60 is: 76,703,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,024,121.40 : 213,036,182.10 = 51,135,900.60 : x
  2. Step 2: Convert to fraction form
    142,024,121.40/213,036,182.10 = 51,135,900.60/x
  3. Step 3: Cross multiply
    142,024,121.40x = 213,036,182.10 × 51,135,900.60
  4. Step 4: Simplify right side
    142,024,121.40x = 10,893,797,032,069,100
  5. Step 5: Solve for x
    x = 10,893,797,032,069,100/142,024,121.40
  6. Step 6: Final answer
    x = 76,703,850.90

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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.