Home / 372,414,271.50-513,905,157.48-221,698,932.72

Finding the Fourth Proportional to 372,414,271.50, 513,905,157.48 and 221,698,932.72

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Solution

The fourth proportional to 372,414,271.50, 513,905,157.48 and 221,698,932.72 is: 305,928,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,414,271.50 : 513,905,157.48 = 221,698,932.72 : x
  2. Step 2: Convert to fraction form
    372,414,271.50/513,905,157.48 = 221,698,932.72/x
  3. Step 3: Cross multiply
    372,414,271.50x = 513,905,157.48 × 221,698,932.72
  4. Step 4: Simplify right side
    372,414,271.50x = 113,932,224,932,619,536
  5. Step 5: Solve for x
    x = 113,932,224,932,619,536/372,414,271.50
  6. Step 6: Final answer
    x = 305,928,729.51

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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.