Home / 31,818,963.99-47,708,912.93-12,365,475.72

Finding the Fourth Proportional to 31,818,963.99, 47,708,912.93 and 12,365,475.72

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Solution

The fourth proportional to 31,818,963.99, 47,708,912.93 and 12,365,475.72 is: 18,540,622.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818,963.99 : 47,708,912.93 = 12,365,475.72 : x
  2. Step 2: Convert to fraction form
    31,818,963.99/47,708,912.93 = 12,365,475.72/x
  3. Step 3: Cross multiply
    31,818,963.99x = 47,708,912.93 × 12,365,475.72
  4. Step 4: Simplify right side
    31,818,963.99x = 589,943,404,351,965.12
  5. Step 5: Solve for x
    x = 589,943,404,351,965.12/31,818,963.99
  6. Step 6: Final answer
    x = 18,540,622.65

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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.