Home / 31,147,150.41-42,982,823.16-18,102,045.33

Finding the Fourth Proportional to 31,147,150.41, 42,982,823.16 and 18,102,045.33

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Solution

The fourth proportional to 31,147,150.41, 42,982,823.16 and 18,102,045.33 is: 24,980,680.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,147,150.41 : 42,982,823.16 = 18,102,045.33 : x
  2. Step 2: Convert to fraction form
    31,147,150.41/42,982,823.16 = 18,102,045.33/x
  3. Step 3: Cross multiply
    31,147,150.41x = 42,982,823.16 × 18,102,045.33
  4. Step 4: Simplify right side
    31,147,150.41x = 778,077,013,253,693.75
  5. Step 5: Solve for x
    x = 778,077,013,253,693.75/31,147,150.41
  6. Step 6: Final answer
    x = 24,980,680.51

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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.