Home / 20,615,152.32-30,912,150.80-10,905,006.24

Finding the Fourth Proportional to 20,615,152.32, 30,912,150.80 and 10,905,006.24

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Solution

The fourth proportional to 20,615,152.32, 30,912,150.80 and 10,905,006.24 is: 16,351,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615,152.32 : 30,912,150.80 = 10,905,006.24 : x
  2. Step 2: Convert to fraction form
    20,615,152.32/30,912,150.80 = 10,905,006.24/x
  3. Step 3: Cross multiply
    20,615,152.32x = 30,912,150.80 × 10,905,006.24
  4. Step 4: Simplify right side
    20,615,152.32x = 337,097,197,365,821
  5. Step 5: Solve for x
    x = 337,097,197,365,821/20,615,152.32
  6. Step 6: Final answer
    x = 16,351,913.98

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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.