Home / 81,080,137.50-111,901,722.05-49,712,638.02

Finding the Fourth Proportional to 81,080,137.50, 111,901,722.05 and 49,712,638.02

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Solution

The fourth proportional to 81,080,137.50, 111,901,722.05 and 49,712,638.02 is: 68,610,266.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,080,137.50 : 111,901,722.05 = 49,712,638.02 : x
  2. Step 2: Convert to fraction form
    81,080,137.50/111,901,722.05 = 49,712,638.02/x
  3. Step 3: Cross multiply
    81,080,137.50x = 111,901,722.05 × 49,712,638.02
  4. Step 4: Simplify right side
    81,080,137.50x = 5,562,929,802,086,303
  5. Step 5: Solve for x
    x = 5,562,929,802,086,303/81,080,137.50
  6. Step 6: Final answer
    x = 68,610,266.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.