Home / 20,142,616.77-30,222,855.81-10,555,715.97

Finding the Fourth Proportional to 20,142,616.77, 30,222,855.81 and 10,555,715.97

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Solution

The fourth proportional to 20,142,616.77, 30,222,855.81 and 10,555,715.97 is: 15,838,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,616.77 : 30,222,855.81 = 10,555,715.97 : x
  2. Step 2: Convert to fraction form
    20,142,616.77/30,222,855.81 = 10,555,715.97/x
  3. Step 3: Cross multiply
    20,142,616.77x = 30,222,855.81 × 10,555,715.97
  4. Step 4: Simplify right side
    20,142,616.77x = 319,023,881,732,624.31
  5. Step 5: Solve for x
    x = 319,023,881,732,624.31/20,142,616.77
  6. Step 6: Final answer
    x = 15,838,254.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.