Home / 20,164,747.56-30,247,075.18-8,642,743.77

Finding the Fourth Proportional to 20,164,747.56, 30,247,075.18 and 8,642,743.77

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Solution

The fourth proportional to 20,164,747.56, 30,247,075.18 and 8,642,743.77 is: 12,964,095.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164,747.56 : 30,247,075.18 = 8,642,743.77 : x
  2. Step 2: Convert to fraction form
    20,164,747.56/30,247,075.18 = 8,642,743.77/x
  3. Step 3: Cross multiply
    20,164,747.56x = 30,247,075.18 × 8,642,743.77
  4. Step 4: Simplify right side
    20,164,747.56x = 261,417,720,572,666.62
  5. Step 5: Solve for x
    x = 261,417,720,572,666.62/20,164,747.56
  6. Step 6: Final answer
    x = 12,964,095.87

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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.