Home / 73,146,832.80-100,943,605.91-40,106,998.21

Finding the Fourth Proportional to 73,146,832.80, 100,943,605.91 and 40,106,998.21

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Solution

The fourth proportional to 73,146,832.80, 100,943,605.91 and 40,106,998.21 is: 55,348,193.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,146,832.80 : 100,943,605.91 = 40,106,998.21 : x
  2. Step 2: Convert to fraction form
    73,146,832.80/100,943,605.91 = 40,106,998.21/x
  3. Step 3: Cross multiply
    73,146,832.80x = 100,943,605.91 × 40,106,998.21
  4. Step 4: Simplify right side
    73,146,832.80x = 4,048,545,021,342,780.50
  5. Step 5: Solve for x
    x = 4,048,545,021,342,780.50/73,146,832.80
  6. Step 6: Final answer
    x = 55,348,193.03

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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.