Home / 55,772,161.88-76,962,771.20-30,991,816.60

Finding the Fourth Proportional to 55,772,161.88, 76,962,771.20 and 30,991,816.60

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Solution

The fourth proportional to 55,772,161.88, 76,962,771.20 and 30,991,816.60 is: 42,767,144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,772,161.88 : 76,962,771.20 = 30,991,816.60 : x
  2. Step 2: Convert to fraction form
    55,772,161.88/76,962,771.20 = 30,991,816.60/x
  3. Step 3: Cross multiply
    55,772,161.88x = 76,962,771.20 × 30,991,816.60
  4. Step 4: Simplify right side
    55,772,161.88x = 2,385,216,090,058,162
  5. Step 5: Solve for x
    x = 2,385,216,090,058,162/55,772,161.88
  6. Step 6: Final answer
    x = 42,767,144.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.