Home / 414,105,825,055.61-621,220,846,180.33-145,447,452,777.21

Finding the Fourth Proportional to 414,105,825,055.61, 621,220,846,180.33 and 145,447,452,777.21

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Solution

The fourth proportional to 414,105,825,055.61, 621,220,846,180.33 and 145,447,452,777.21 is: 218,192,993,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,105,825,055.61 : 621,220,846,180.33 = 145,447,452,777.21 : x
  2. Step 2: Convert to fraction form
    414,105,825,055.61/621,220,846,180.33 = 145,447,452,777.21/x
  3. Step 3: Cross multiply
    414,105,825,055.61x = 621,220,846,180.33 × 145,447,452,777.21
  4. Step 4: Simplify right side
    414,105,825,055.61x = 90,354,989,689,031,966,588,928
  5. Step 5: Solve for x
    x = 90,354,989,689,031,966,588,928/414,105,825,055.61
  6. Step 6: Final answer
    x = 218,192,993,727.87

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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.