Home / 72,812,424.80-109,076,919.60-43,972,893.20

Finding the Fourth Proportional to 72,812,424.80, 109,076,919.60 and 43,972,893.20

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Solution

The fourth proportional to 72,812,424.80, 109,076,919.60 and 43,972,893.20 is: 65,873,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,812,424.80 : 109,076,919.60 = 43,972,893.20 : x
  2. Step 2: Convert to fraction form
    72,812,424.80/109,076,919.60 = 43,972,893.20/x
  3. Step 3: Cross multiply
    72,812,424.80x = 109,076,919.60 × 43,972,893.20
  4. Step 4: Simplify right side
    72,812,424.80x = 4,796,427,736,155,787
  5. Step 5: Solve for x
    x = 4,796,427,736,155,787/72,812,424.80
  6. Step 6: Final answer
    x = 65,873,753.68

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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.