Home / 81,444,607.80-122,166,911.70-67,095,700.80

Finding the Fourth Proportional to 81,444,607.80, 122,166,911.70 and 67,095,700.80

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Solution

The fourth proportional to 81,444,607.80, 122,166,911.70 and 67,095,700.80 is: 100,643,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,444,607.80 : 122,166,911.70 = 67,095,700.80 : x
  2. Step 2: Convert to fraction form
    81,444,607.80/122,166,911.70 = 67,095,700.80/x
  3. Step 3: Cross multiply
    81,444,607.80x = 122,166,911.70 × 67,095,700.80
  4. Step 4: Simplify right side
    81,444,607.80x = 8,196,874,555,083,219
  5. Step 5: Solve for x
    x = 8,196,874,555,083,219/81,444,607.80
  6. Step 6: Final answer
    x = 100,643,551.20

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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.