Home / 513,541,231.03-708,627,111.69-287,492,592.97

Finding the Fourth Proportional to 513,541,231.03, 708,627,111.69 and 287,492,592.97

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Solution

The fourth proportional to 513,541,231.03, 708,627,111.69 and 287,492,592.97 is: 396,706,308.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,541,231.03 : 708,627,111.69 = 287,492,592.97 : x
  2. Step 2: Convert to fraction form
    513,541,231.03/708,627,111.69 = 287,492,592.97/x
  3. Step 3: Cross multiply
    513,541,231.03x = 708,627,111.69 × 287,492,592.97
  4. Step 4: Simplify right side
    513,541,231.03x = 203,725,045,788,599,936
  5. Step 5: Solve for x
    x = 203,725,045,788,599,936/513,541,231.03
  6. Step 6: Final answer
    x = 396,706,308.04

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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.