Home / 421,955,992.59-582,299,269.78-236,317,008.28

Finding the Fourth Proportional to 421,955,992.59, 582,299,269.78 and 236,317,008.28

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Solution

The fourth proportional to 421,955,992.59, 582,299,269.78 and 236,317,008.28 is: 326,117,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,955,992.59 : 582,299,269.78 = 236,317,008.28 : x
  2. Step 2: Convert to fraction form
    421,955,992.59/582,299,269.78 = 236,317,008.28/x
  3. Step 3: Cross multiply
    421,955,992.59x = 582,299,269.78 × 236,317,008.28
  4. Step 4: Simplify right side
    421,955,992.59x = 137,607,221,358,191,264
  5. Step 5: Solve for x
    x = 137,607,221,358,191,264/421,955,992.59
  6. Step 6: Final answer
    x = 326,117,471.43

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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.