Home / 144,847,876.76-199,891,493.26-78,769,810.92

Finding the Fourth Proportional to 144,847,876.76, 199,891,493.26 and 78,769,810.92

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Solution

The fourth proportional to 144,847,876.76, 199,891,493.26 and 78,769,810.92 is: 108,703,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,847,876.76 : 199,891,493.26 = 78,769,810.92 : x
  2. Step 2: Convert to fraction form
    144,847,876.76/199,891,493.26 = 78,769,810.92/x
  3. Step 3: Cross multiply
    144,847,876.76x = 199,891,493.26 × 78,769,810.92
  4. Step 4: Simplify right side
    144,847,876.76x = 15,745,415,128,478,408
  5. Step 5: Solve for x
    x = 15,745,415,128,478,408/144,847,876.76
  6. Step 6: Final answer
    x = 108,703,113.09

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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.