Home / 54,076,977.12-81,069,276.24-19,991,969.76

Finding the Fourth Proportional to 54,076,977.12, 81,069,276.24 and 19,991,969.76

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Solution

The fourth proportional to 54,076,977.12, 81,069,276.24 and 19,991,969.76 is: 29,970,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,076,977.12 : 81,069,276.24 = 19,991,969.76 : x
  2. Step 2: Convert to fraction form
    54,076,977.12/81,069,276.24 = 19,991,969.76/x
  3. Step 3: Cross multiply
    54,076,977.12x = 81,069,276.24 × 19,991,969.76
  4. Step 4: Simplify right side
    54,076,977.12x = 1,620,734,519,055,166.50
  5. Step 5: Solve for x
    x = 1,620,734,519,055,166.50/54,076,977.12
  6. Step 6: Final answer
    x = 29,970,878.65

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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.