Home / 20,405,913.40-30,642,047.70-14,765,721.40

Finding the Fourth Proportional to 20,405,913.40, 30,642,047.70 and 14,765,721.40

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Solution

The fourth proportional to 20,405,913.40, 30,642,047.70 and 14,765,721.40 is: 22,172,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,913.40 : 30,642,047.70 = 14,765,721.40 : x
  2. Step 2: Convert to fraction form
    20,405,913.40/30,642,047.70 = 14,765,721.40/x
  3. Step 3: Cross multiply
    20,405,913.40x = 30,642,047.70 × 14,765,721.40
  4. Step 4: Simplify right side
    20,405,913.40x = 452,451,939,463,710.75
  5. Step 5: Solve for x
    x = 452,451,939,463,710.75/20,405,913.40
  6. Step 6: Final answer
    x = 22,172,589.42

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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.