Home / 81,490,179.20-122,235,268.80-49,125,422.30

Finding the Fourth Proportional to 81,490,179.20, 122,235,268.80 and 49,125,422.30

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Solution

The fourth proportional to 81,490,179.20, 122,235,268.80 and 49,125,422.30 is: 73,688,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490,179.20 : 122,235,268.80 = 49,125,422.30 : x
  2. Step 2: Convert to fraction form
    81,490,179.20/122,235,268.80 = 49,125,422.30/x
  3. Step 3: Cross multiply
    81,490,179.20x = 122,235,268.80 × 49,125,422.30
  4. Step 4: Simplify right side
    81,490,179.20x = 6,004,859,199,754,014
  5. Step 5: Solve for x
    x = 6,004,859,199,754,014/81,490,179.20
  6. Step 6: Final answer
    x = 73,688,133.45

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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.