Home / 144,501,412.86-199,412,053.83-78,421,893.66

Finding the Fourth Proportional to 144,501,412.86, 199,412,053.83 and 78,421,893.66

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Solution

The fourth proportional to 144,501,412.86, 199,412,053.83 and 78,421,893.66 is: 108,222,269.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,501,412.86 : 199,412,053.83 = 78,421,893.66 : x
  2. Step 2: Convert to fraction form
    144,501,412.86/199,412,053.83 = 78,421,893.66/x
  3. Step 3: Cross multiply
    144,501,412.86x = 199,412,053.83 × 78,421,893.66
  4. Step 4: Simplify right side
    144,501,412.86x = 15,638,270,879,978,456
  5. Step 5: Solve for x
    x = 15,638,270,879,978,456/144,501,412.86
  6. Step 6: Final answer
    x = 108,222,269.74

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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.