Home / 81,428,440.01-122,142,582.26-20,844,068.81

Finding the Fourth Proportional to 81,428,440.01, 122,142,582.26 and 20,844,068.81

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Solution

The fourth proportional to 81,428,440.01, 122,142,582.26 and 20,844,068.81 is: 31,266,083.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,428,440.01 : 122,142,582.26 = 20,844,068.81 : x
  2. Step 2: Convert to fraction form
    81,428,440.01/122,142,582.26 = 20,844,068.81/x
  3. Step 3: Cross multiply
    81,428,440.01x = 122,142,582.26 × 20,844,068.81
  4. Step 4: Simplify right side
    81,428,440.01x = 2,545,948,389,154,304.50
  5. Step 5: Solve for x
    x = 2,545,948,389,154,304.50/81,428,440.01
  6. Step 6: Final answer
    x = 31,266,083.31

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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.