Home / 81,457,371.60-122,191,962.30-49,039,470.60

Finding the Fourth Proportional to 81,457,371.60, 122,191,962.30 and 49,039,470.60

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Solution

The fourth proportional to 81,457,371.60, 122,191,962.30 and 49,039,470.60 is: 73,562,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,457,371.60 : 122,191,962.30 = 49,039,470.60 : x
  2. Step 2: Convert to fraction form
    81,457,371.60/122,191,962.30 = 49,039,470.60/x
  3. Step 3: Cross multiply
    81,457,371.60x = 122,191,962.30 × 49,039,470.60
  4. Step 4: Simplify right side
    81,457,371.60x = 5,992,229,142,767,158
  5. Step 5: Solve for x
    x = 5,992,229,142,767,158/81,457,371.60
  6. Step 6: Final answer
    x = 73,562,760.80

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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.