Home / 103,775,021.20-143,211,231.59-61,962,739.89

Finding the Fourth Proportional to 103,775,021.20, 143,211,231.59 and 61,962,739.89

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Solution

The fourth proportional to 103,775,021.20, 143,211,231.59 and 61,962,739.89 is: 85,509,597.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,775,021.20 : 143,211,231.59 = 61,962,739.89 : x
  2. Step 2: Convert to fraction form
    103,775,021.20/143,211,231.59 = 61,962,739.89/x
  3. Step 3: Cross multiply
    103,775,021.20x = 143,211,231.59 × 61,962,739.89
  4. Step 4: Simplify right side
    103,775,021.20x = 8,873,760,292,337,721
  5. Step 5: Solve for x
    x = 8,873,760,292,337,721/103,775,021.20
  6. Step 6: Final answer
    x = 85,509,597.49

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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.