Home / 360,958,341,195.78-498,134,456,870.20-198,383,749,638.80

Finding the Fourth Proportional to 360,958,341,195.78, 498,134,456,870.20 and 198,383,749,638.80

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Solution

The fourth proportional to 360,958,341,195.78, 498,134,456,870.20 and 198,383,749,638.80 is: 273,776,140,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,958,341,195.78 : 498,134,456,870.20 = 198,383,749,638.80 : x
  2. Step 2: Convert to fraction form
    360,958,341,195.78/498,134,456,870.20 = 198,383,749,638.80/x
  3. Step 3: Cross multiply
    360,958,341,195.78x = 498,134,456,870.20 × 198,383,749,638.80
  4. Step 4: Simplify right side
    360,958,341,195.78x = 98,821,781,378,197,362,835,456
  5. Step 5: Solve for x
    x = 98,821,781,378,197,362,835,456/360,958,341,195.78
  6. Step 6: Final answer
    x = 273,776,140,068.74

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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.