Home / 142,855,262.15-197,139,448.76-79,274,964.87

Finding the Fourth Proportional to 142,855,262.15, 197,139,448.76 and 79,274,964.87

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Solution

The fourth proportional to 142,855,262.15, 197,139,448.76 and 79,274,964.87 is: 109,399,000.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,855,262.15 : 197,139,448.76 = 79,274,964.87 : x
  2. Step 2: Convert to fraction form
    142,855,262.15/197,139,448.76 = 79,274,964.87/x
  3. Step 3: Cross multiply
    142,855,262.15x = 197,139,448.76 × 79,274,964.87
  4. Step 4: Simplify right side
    142,855,262.15x = 15,628,222,874,543,790
  5. Step 5: Solve for x
    x = 15,628,222,874,543,790/142,855,262.15
  6. Step 6: Final answer
    x = 109,399,000.36

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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.