Home / 144,501,477.47-199,412,142.94-78,421,958.64

Finding the Fourth Proportional to 144,501,477.47, 199,412,142.94 and 78,421,958.64

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Solution

The fourth proportional to 144,501,477.47, 199,412,142.94 and 78,421,958.64 is: 108,222,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,501,477.47 : 199,412,142.94 = 78,421,958.64 : x
  2. Step 2: Convert to fraction form
    144,501,477.47/199,412,142.94 = 78,421,958.64/x
  3. Step 3: Cross multiply
    144,501,477.47x = 199,412,142.94 × 78,421,958.64
  4. Step 4: Simplify right side
    144,501,477.47x = 15,638,290,826,052,476
  5. Step 5: Solve for x
    x = 15,638,290,826,052,476/144,501,477.47
  6. Step 6: Final answer
    x = 108,222,359.38

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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.