Home / 103,255,279.92-142,502,579.79-77,104,396.89

Finding the Fourth Proportional to 103,255,279.92, 142,502,579.79 and 77,104,396.89

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Solution

The fourth proportional to 103,255,279.92, 142,502,579.79 and 77,104,396.89 is: 106,411,754.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255,279.92 : 142,502,579.79 = 77,104,396.89 : x
  2. Step 2: Convert to fraction form
    103,255,279.92/142,502,579.79 = 77,104,396.89/x
  3. Step 3: Cross multiply
    103,255,279.92x = 142,502,579.79 × 77,104,396.89
  4. Step 4: Simplify right side
    103,255,279.92x = 10,987,575,469,977,052
  5. Step 5: Solve for x
    x = 10,987,575,469,977,052/103,255,279.92
  6. Step 6: Final answer
    x = 106,411,754.23

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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.