Home / 81,657,281.55-122,485,922.33-74,099,009.55

Finding the Fourth Proportional to 81,657,281.55, 122,485,922.33 and 74,099,009.55

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Solution

The fourth proportional to 81,657,281.55, 122,485,922.33 and 74,099,009.55 is: 111,148,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,657,281.55 : 122,485,922.33 = 74,099,009.55 : x
  2. Step 2: Convert to fraction form
    81,657,281.55/122,485,922.33 = 74,099,009.55/x
  3. Step 3: Cross multiply
    81,657,281.55x = 122,485,922.33 × 74,099,009.55
  4. Step 4: Simplify right side
    81,657,281.55x = 9,076,085,528,100,734
  5. Step 5: Solve for x
    x = 9,076,085,528,100,734/81,657,281.55
  6. Step 6: Final answer
    x = 111,148,514.33

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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.