Home / 81,852,022.80-122,778,034.20-56,023,990.20

Finding the Fourth Proportional to 81,852,022.80, 122,778,034.20 and 56,023,990.20

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Solution

The fourth proportional to 81,852,022.80, 122,778,034.20 and 56,023,990.20 is: 84,035,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,852,022.80 : 122,778,034.20 = 56,023,990.20 : x
  2. Step 2: Convert to fraction form
    81,852,022.80/122,778,034.20 = 56,023,990.20/x
  3. Step 3: Cross multiply
    81,852,022.80x = 122,778,034.20 × 56,023,990.20
  4. Step 4: Simplify right side
    81,852,022.80x = 6,878,515,384,796,065
  5. Step 5: Solve for x
    x = 6,878,515,384,796,065/81,852,022.80
  6. Step 6: Final answer
    x = 84,035,985.30

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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.