Home / 258,971,846.40-388,457,769.60-247,027,910.40

Finding the Fourth Proportional to 258,971,846.40, 388,457,769.60 and 247,027,910.40

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Solution

The fourth proportional to 258,971,846.40, 388,457,769.60 and 247,027,910.40 is: 370,541,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,971,846.40 : 388,457,769.60 = 247,027,910.40 : x
  2. Step 2: Convert to fraction form
    258,971,846.40/388,457,769.60 = 247,027,910.40/x
  3. Step 3: Cross multiply
    258,971,846.40x = 388,457,769.60 × 247,027,910.40
  4. Step 4: Simplify right side
    258,971,846.40x = 95,959,911,102,932,656
  5. Step 5: Solve for x
    x = 95,959,911,102,932,656/258,971,846.40
  6. Step 6: Final answer
    x = 370,541,865.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.