Home / 20,393,592.50-28,089,546.81-15,674,964.50

Finding the Fourth Proportional to 20,393,592.50, 28,089,546.81 and 15,674,964.50

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Solution

The fourth proportional to 20,393,592.50, 28,089,546.81 and 15,674,964.50 is: 21,590,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393,592.50 : 28,089,546.81 = 15,674,964.50 : x
  2. Step 2: Convert to fraction form
    20,393,592.50/28,089,546.81 = 15,674,964.50/x
  3. Step 3: Cross multiply
    20,393,592.50x = 28,089,546.81 × 15,674,964.50
  4. Step 4: Simplify right side
    20,393,592.50x = 440,302,649,067,838.25
  5. Step 5: Solve for x
    x = 440,302,649,067,838.25/20,393,592.50
  6. Step 6: Final answer
    x = 21,590,244.54

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1.5x scale

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.