Home / 288,738,591,360.14-398,500,692,116.43-172,999,921,711.33

Finding the Fourth Proportional to 288,738,591,360.14, 398,500,692,116.43 and 172,999,921,711.33

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Solution

The fourth proportional to 288,738,591,360.14, 398,500,692,116.43 and 172,999,921,711.33 is: 238,764,718,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,738,591,360.14 : 398,500,692,116.43 = 172,999,921,711.33 : x
  2. Step 2: Convert to fraction form
    288,738,591,360.14/398,500,692,116.43 = 172,999,921,711.33/x
  3. Step 3: Cross multiply
    288,738,591,360.14x = 398,500,692,116.43 × 172,999,921,711.33
  4. Step 4: Simplify right side
    288,738,591,360.14x = 68,940,588,538,053,200,445,440
  5. Step 5: Solve for x
    x = 68,940,588,538,053,200,445,440/288,738,591,360.14
  6. Step 6: Final answer
    x = 238,764,718,679.62

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1.5x scale

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.