Home / 75,571,090.56-113,356,946.88-20,987,976.96

Finding the Fourth Proportional to 75,571,090.56, 113,356,946.88 and 20,987,976.96

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Solution

The fourth proportional to 75,571,090.56, 113,356,946.88 and 20,987,976.96 is: 31,482,051.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,571,090.56 : 113,356,946.88 = 20,987,976.96 : x
  2. Step 2: Convert to fraction form
    75,571,090.56/113,356,946.88 = 20,987,976.96/x
  3. Step 3: Cross multiply
    75,571,090.56x = 113,356,946.88 × 20,987,976.96
  4. Step 4: Simplify right side
    75,571,090.56x = 2,379,132,989,373,384
  5. Step 5: Solve for x
    x = 2,379,132,989,373,384/75,571,090.56
  6. Step 6: Final answer
    x = 31,482,051.82

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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.