Home / 306,505,195.32-422,921,476.88-181,077,812.32

Finding the Fourth Proportional to 306,505,195.32, 422,921,476.88 and 181,077,812.32

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Solution

The fourth proportional to 306,505,195.32, 422,921,476.88 and 181,077,812.32 is: 249,854,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,505,195.32 : 422,921,476.88 = 181,077,812.32 : x
  2. Step 2: Convert to fraction form
    306,505,195.32/422,921,476.88 = 181,077,812.32/x
  3. Step 3: Cross multiply
    306,505,195.32x = 422,921,476.88 × 181,077,812.32
  4. Step 4: Simplify right side
    306,505,195.32x = 76,581,695,816,573,856
  5. Step 5: Solve for x
    x = 76,581,695,816,573,856/306,505,195.32
  6. Step 6: Final answer
    x = 249,854,478.77

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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.