Home / 81,566,125.93-122,345,870.77-20,153,738.08

Finding the Fourth Proportional to 81,566,125.93, 122,345,870.77 and 20,153,738.08

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Solution

The fourth proportional to 81,566,125.93, 122,345,870.77 and 20,153,738.08 is: 30,229,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566,125.93 : 122,345,870.77 = 20,153,738.08 : x
  2. Step 2: Convert to fraction form
    81,566,125.93/122,345,870.77 = 20,153,738.08/x
  3. Step 3: Cross multiply
    81,566,125.93x = 122,345,870.77 × 20,153,738.08
  4. Step 4: Simplify right side
    81,566,125.93x = 2,465,726,634,902,864.50
  5. Step 5: Solve for x
    x = 2,465,726,634,902,864.50/81,566,125.93
  6. Step 6: Final answer
    x = 30,229,787.26

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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.