Home / 20,430,069.36-30,645,670.80-5,076,738.84

Finding the Fourth Proportional to 20,430,069.36, 30,645,670.80 and 5,076,738.84

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Solution

The fourth proportional to 20,430,069.36, 30,645,670.80 and 5,076,738.84 is: 7,615,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430,069.36 : 30,645,670.80 = 5,076,738.84 : x
  2. Step 2: Convert to fraction form
    20,430,069.36/30,645,670.80 = 5,076,738.84/x
  3. Step 3: Cross multiply
    20,430,069.36x = 30,645,670.80 × 5,076,738.84
  4. Step 4: Simplify right side
    20,430,069.36x = 155,580,067,228,213.88
  5. Step 5: Solve for x
    x = 155,580,067,228,213.88/20,430,069.36
  6. Step 6: Final answer
    x = 7,615,249.10

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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.