Home / 31,419,208.96-47,128,791.52-9,855,476.40

Finding the Fourth Proportional to 31,419,208.96, 47,128,791.52 and 9,855,476.40

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Solution

The fourth proportional to 31,419,208.96, 47,128,791.52 and 9,855,476.40 is: 14,783,207.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419,208.96 : 47,128,791.52 = 9,855,476.40 : x
  2. Step 2: Convert to fraction form
    31,419,208.96/47,128,791.52 = 9,855,476.40/x
  3. Step 3: Cross multiply
    31,419,208.96x = 47,128,791.52 × 9,855,476.40
  4. Step 4: Simplify right side
    31,419,208.96x = 464,476,692,585,880.19
  5. Step 5: Solve for x
    x = 464,476,692,585,880.19/31,419,208.96
  6. Step 6: Final answer
    x = 14,783,207.72

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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.