Home / 142,685,795.62-196,894,377.55-79,107,835.74

Finding the Fourth Proportional to 142,685,795.62, 196,894,377.55 and 79,107,835.74

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Solution

The fourth proportional to 142,685,795.62, 196,894,377.55 and 79,107,835.74 is: 109,162,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,685,795.62 : 196,894,377.55 = 79,107,835.74 : x
  2. Step 2: Convert to fraction form
    142,685,795.62/196,894,377.55 = 79,107,835.74/x
  3. Step 3: Cross multiply
    142,685,795.62x = 196,894,377.55 × 79,107,835.74
  4. Step 4: Simplify right side
    142,685,795.62x = 15,575,888,077,354,944
  5. Step 5: Solve for x
    x = 15,575,888,077,354,944/142,685,795.62
  6. Step 6: Final answer
    x = 109,162,148.97

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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.