Home / 912,028,042.21-1,258,600,552.86-494,340,610.45

Finding the Fourth Proportional to 912,028,042.21, 1,258,600,552.86 and 494,340,610.45

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Solution

The fourth proportional to 912,028,042.21, 1,258,600,552.86 and 494,340,610.45 is: 682,191,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,028,042.21 : 1,258,600,552.86 = 494,340,610.45 : x
  2. Step 2: Convert to fraction form
    912,028,042.21/1,258,600,552.86 = 494,340,610.45/x
  3. Step 3: Cross multiply
    912,028,042.21x = 1,258,600,552.86 × 494,340,610.45
  4. Step 4: Simplify right side
    912,028,042.21x = 622,177,365,614,568,576
  5. Step 5: Solve for x
    x = 622,177,365,614,568,576/912,028,042.21
  6. Step 6: Final answer
    x = 682,191,047.66

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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.