Home / 31,681,318.63-47,541,968.83-13,485,484.78

Finding the Fourth Proportional to 31,681,318.63, 47,541,968.83 and 13,485,484.78

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Solution

The fourth proportional to 31,681,318.63, 47,541,968.83 and 13,485,484.78 is: 20,236,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681,318.63 : 47,541,968.83 = 13,485,484.78 : x
  2. Step 2: Convert to fraction form
    31,681,318.63/47,541,968.83 = 13,485,484.78/x
  3. Step 3: Cross multiply
    31,681,318.63x = 47,541,968.83 × 13,485,484.78
  4. Step 4: Simplify right side
    31,681,318.63x = 641,126,496,763,062.25
  5. Step 5: Solve for x
    x = 641,126,496,763,062.25/31,681,318.63
  6. Step 6: Final answer
    x = 20,236,736.49

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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.