Home / 221,864,443.13-306,170,661.45-122,745,899.91

Finding the Fourth Proportional to 221,864,443.13, 306,170,661.45 and 122,745,899.91

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Solution

The fourth proportional to 221,864,443.13, 306,170,661.45 and 122,745,899.91 is: 169,388,085.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,864,443.13 : 306,170,661.45 = 122,745,899.91 : x
  2. Step 2: Convert to fraction form
    221,864,443.13/306,170,661.45 = 122,745,899.91/x
  3. Step 3: Cross multiply
    221,864,443.13x = 306,170,661.45 × 122,745,899.91
  4. Step 4: Simplify right side
    221,864,443.13x = 37,581,193,365,720,192
  5. Step 5: Solve for x
    x = 37,581,193,365,720,192/221,864,443.13
  6. Step 6: Final answer
    x = 169,388,085.97

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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.