Home / 123,069,208.82-169,887,801.95-76,682,381.13

Finding the Fourth Proportional to 123,069,208.82, 169,887,801.95 and 76,682,381.13

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Solution

The fourth proportional to 123,069,208.82, 169,887,801.95 and 76,682,381.13 is: 105,854,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,069,208.82 : 169,887,801.95 = 76,682,381.13 : x
  2. Step 2: Convert to fraction form
    123,069,208.82/169,887,801.95 = 76,682,381.13/x
  3. Step 3: Cross multiply
    123,069,208.82x = 169,887,801.95 × 76,682,381.13
  4. Step 4: Simplify right side
    123,069,208.82x = 13,027,401,178,084,444
  5. Step 5: Solve for x
    x = 13,027,401,178,084,444/123,069,208.82
  6. Step 6: Final answer
    x = 105,854,269.35

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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.