Home / 103,538,108.38-142,885,579.35-57,131,351.59

Finding the Fourth Proportional to 103,538,108.38, 142,885,579.35 and 57,131,351.59

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Solution

The fourth proportional to 103,538,108.38, 142,885,579.35 and 57,131,351.59 is: 78,842,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,538,108.38 : 142,885,579.35 = 57,131,351.59 : x
  2. Step 2: Convert to fraction form
    103,538,108.38/142,885,579.35 = 57,131,351.59/x
  3. Step 3: Cross multiply
    103,538,108.38x = 142,885,579.35 × 57,131,351.59
  4. Step 4: Simplify right side
    103,538,108.38x = 8,163,246,270,985,694
  5. Step 5: Solve for x
    x = 8,163,246,270,985,694/103,538,108.38
  6. Step 6: Final answer
    x = 78,842,914.93

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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.