Home / 20,508,929.80-30,761,061.90-5,364,392.20

Finding the Fourth Proportional to 20,508,929.80, 30,761,061.90 and 5,364,392.20

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Solution

The fourth proportional to 20,508,929.80, 30,761,061.90 and 5,364,392.20 is: 8,045,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508,929.80 : 30,761,061.90 = 5,364,392.20 : x
  2. Step 2: Convert to fraction form
    20,508,929.80/30,761,061.90 = 5,364,392.20/x
  3. Step 3: Cross multiply
    20,508,929.80x = 30,761,061.90 × 5,364,392.20
  4. Step 4: Simplify right side
    20,508,929.80x = 165,014,400,520,077.19
  5. Step 5: Solve for x
    x = 165,014,400,520,077.19/20,508,929.80
  6. Step 6: Final answer
    x = 8,045,978.12

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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.