Home / 61,211,998.80-91,605,421.80-42,080,122.80

Finding the Fourth Proportional to 61,211,998.80, 91,605,421.80 and 42,080,122.80

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Solution

The fourth proportional to 61,211,998.80, 91,605,421.80 and 42,080,122.80 is: 62,974,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,211,998.80 : 91,605,421.80 = 42,080,122.80 : x
  2. Step 2: Convert to fraction form
    61,211,998.80/91,605,421.80 = 42,080,122.80/x
  3. Step 3: Cross multiply
    61,211,998.80x = 91,605,421.80 × 42,080,122.80
  4. Step 4: Simplify right side
    61,211,998.80x = 3,854,767,398,489,796.50
  5. Step 5: Solve for x
    x = 3,854,767,398,489,796.50/61,211,998.80
  6. Step 6: Final answer
    x = 62,974,048.78

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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.