Home / 142,246,175.20-213,262,974.60-77,622,949.60

Finding the Fourth Proportional to 142,246,175.20, 213,262,974.60 and 77,622,949.60

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Solution

The fourth proportional to 142,246,175.20, 213,262,974.60 and 77,622,949.60 is: 116,376,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,246,175.20 : 213,262,974.60 = 77,622,949.60 : x
  2. Step 2: Convert to fraction form
    142,246,175.20/213,262,974.60 = 77,622,949.60/x
  3. Step 3: Cross multiply
    142,246,175.20x = 213,262,974.60 × 77,622,949.60
  4. Step 4: Simplify right side
    142,246,175.20x = 16,554,101,128,921,878
  5. Step 5: Solve for x
    x = 16,554,101,128,921,878/142,246,175.20
  6. Step 6: Final answer
    x = 116,376,423.52

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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.