Home / 12,539,957.20-18,809,935.80-6,162,665.20

Finding the Fourth Proportional to 12,539,957.20, 18,809,935.80 and 6,162,665.20

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Solution

The fourth proportional to 12,539,957.20, 18,809,935.80 and 6,162,665.20 is: 9,243,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539,957.20 : 18,809,935.80 = 6,162,665.20 : x
  2. Step 2: Convert to fraction form
    12,539,957.20/18,809,935.80 = 6,162,665.20/x
  3. Step 3: Cross multiply
    12,539,957.20x = 18,809,935.80 × 6,162,665.20
  4. Step 4: Simplify right side
    12,539,957.20x = 115,919,336,768,894.17
  5. Step 5: Solve for x
    x = 115,919,336,768,894.17/12,539,957.20
  6. Step 6: Final answer
    x = 9,243,997.80

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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.