Home / 131,022,424.03-180,809,698.24-72,285,563.60

Finding the Fourth Proportional to 131,022,424.03, 180,809,698.24 and 72,285,563.60

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Solution

The fourth proportional to 131,022,424.03, 180,809,698.24 and 72,285,563.60 is: 99,753,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,022,424.03 : 180,809,698.24 = 72,285,563.60 : x
  2. Step 2: Convert to fraction form
    131,022,424.03/180,809,698.24 = 72,285,563.60/x
  3. Step 3: Cross multiply
    131,022,424.03x = 180,809,698.24 × 72,285,563.60
  4. Step 4: Simplify right side
    131,022,424.03x = 13,069,930,942,199,284
  5. Step 5: Solve for x
    x = 13,069,930,942,199,284/131,022,424.03
  6. Step 6: Final answer
    x = 99,753,389.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.