Home / 20,363,315.20-30,544,972.80-19,367,987.20

Finding the Fourth Proportional to 20,363,315.20, 30,544,972.80 and 19,367,987.20

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Solution

The fourth proportional to 20,363,315.20, 30,544,972.80 and 19,367,987.20 is: 29,051,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363,315.20 : 30,544,972.80 = 19,367,987.20 : x
  2. Step 2: Convert to fraction form
    20,363,315.20/30,544,972.80 = 19,367,987.20/x
  3. Step 3: Cross multiply
    20,363,315.20x = 30,544,972.80 × 19,367,987.20
  4. Step 4: Simplify right side
    20,363,315.20x = 591,594,642,214,748.12
  5. Step 5: Solve for x
    x = 591,594,642,214,748.12/20,363,315.20
  6. Step 6: Final answer
    x = 29,051,980.80

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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.