Home / 31,378,057.91-47,040,130.33-10,905,117.61

Finding the Fourth Proportional to 31,378,057.91, 47,040,130.33 and 10,905,117.61

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Solution

The fourth proportional to 31,378,057.91, 47,040,130.33 and 10,905,117.61 is: 16,348,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378,057.91 : 47,040,130.33 = 10,905,117.61 : x
  2. Step 2: Convert to fraction form
    31,378,057.91/47,040,130.33 = 10,905,117.61/x
  3. Step 3: Cross multiply
    31,378,057.91x = 47,040,130.33 × 10,905,117.61
  4. Step 4: Simplify right side
    31,378,057.91x = 512,978,153,638,378.06
  5. Step 5: Solve for x
    x = 512,978,153,638,378.06/31,378,057.91
  6. Step 6: Final answer
    x = 16,348,307.95

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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.