Home / 81,850,621.20-122,775,931.80-49,565,580.45

Finding the Fourth Proportional to 81,850,621.20, 122,775,931.80 and 49,565,580.45

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Solution

The fourth proportional to 81,850,621.20, 122,775,931.80 and 49,565,580.45 is: 74,348,370.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,850,621.20 : 122,775,931.80 = 49,565,580.45 : x
  2. Step 2: Convert to fraction form
    81,850,621.20/122,775,931.80 = 49,565,580.45/x
  3. Step 3: Cross multiply
    81,850,621.20x = 122,775,931.80 × 49,565,580.45
  4. Step 4: Simplify right side
    81,850,621.20x = 6,085,460,324,956,614
  5. Step 5: Solve for x
    x = 6,085,460,324,956,614/81,850,621.20
  6. Step 6: Final answer
    x = 74,348,370.68

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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.