Home / 20,640,698.20-30,994,095.30-16,415,997.40

Finding the Fourth Proportional to 20,640,698.20, 30,994,095.30 and 16,415,997.40

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Solution

The fourth proportional to 20,640,698.20, 30,994,095.30 and 16,415,997.40 is: 24,650,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,640,698.20 : 30,994,095.30 = 16,415,997.40 : x
  2. Step 2: Convert to fraction form
    20,640,698.20/30,994,095.30 = 16,415,997.40/x
  3. Step 3: Cross multiply
    20,640,698.20x = 30,994,095.30 × 16,415,997.40
  4. Step 4: Simplify right side
    20,640,698.20x = 508,798,987,860,152.25
  5. Step 5: Solve for x
    x = 508,798,987,860,152.25/20,640,698.20
  6. Step 6: Final answer
    x = 24,650,279.90

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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.