Home / 20,255,943.77-30,385,267.49-7,123,786.07

Finding the Fourth Proportional to 20,255,943.77, 30,385,267.49 and 7,123,786.07

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Solution

The fourth proportional to 20,255,943.77, 30,385,267.49 and 7,123,786.07 is: 10,686,154.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255,943.77 : 30,385,267.49 = 7,123,786.07 : x
  2. Step 2: Convert to fraction form
    20,255,943.77/30,385,267.49 = 7,123,786.07/x
  3. Step 3: Cross multiply
    20,255,943.77x = 30,385,267.49 × 7,123,786.07
  4. Step 4: Simplify right side
    20,255,943.77x = 216,458,145,144,369
  5. Step 5: Solve for x
    x = 216,458,145,144,369/20,255,943.77
  6. Step 6: Final answer
    x = 10,686,154.52

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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.