Home / 144,293,215.12-199,119,300.23-78,212,294.59

Finding the Fourth Proportional to 144,293,215.12, 199,119,300.23 and 78,212,294.59

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Solution

The fourth proportional to 144,293,215.12, 199,119,300.23 and 78,212,294.59 is: 107,930,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,293,215.12 : 199,119,300.23 = 78,212,294.59 : x
  2. Step 2: Convert to fraction form
    144,293,215.12/199,119,300.23 = 78,212,294.59/x
  3. Step 3: Cross multiply
    144,293,215.12x = 199,119,300.23 × 78,212,294.59
  4. Step 4: Simplify right side
    144,293,215.12x = 15,573,577,368,143,414
  5. Step 5: Solve for x
    x = 15,573,577,368,143,414/144,293,215.12
  6. Step 6: Final answer
    x = 107,930,073.88

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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.