Home / 144,293,217.88-199,119,304.02-78,212,297.35

Finding the Fourth Proportional to 144,293,217.88, 199,119,304.02 and 78,212,297.35

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Solution

The fourth proportional to 144,293,217.88, 199,119,304.02 and 78,212,297.35 is: 107,930,077.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,293,217.88 : 199,119,304.02 = 78,212,297.35 : x
  2. Step 2: Convert to fraction form
    144,293,217.88/199,119,304.02 = 78,212,297.35/x
  3. Step 3: Cross multiply
    144,293,217.88x = 199,119,304.02 × 78,212,297.35
  4. Step 4: Simplify right side
    144,293,217.88x = 15,573,578,213,141,694
  5. Step 5: Solve for x
    x = 15,573,578,213,141,694/144,293,217.88
  6. Step 6: Final answer
    x = 107,930,077.67

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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.