Home / 414,344,649.20-621,591,623.40-172,032,047.60

Finding the Fourth Proportional to 414,344,649.20, 621,591,623.40 and 172,032,047.60

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Solution

The fourth proportional to 414,344,649.20, 621,591,623.40 and 172,032,047.60 is: 258,079,065.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,344,649.20 : 621,591,623.40 = 172,032,047.60 : x
  2. Step 2: Convert to fraction form
    414,344,649.20/621,591,623.40 = 172,032,047.60/x
  3. Step 3: Cross multiply
    414,344,649.20x = 621,591,623.40 × 172,032,047.60
  4. Step 4: Simplify right side
    414,344,649.20x = 106,933,679,744,510,064
  5. Step 5: Solve for x
    x = 106,933,679,744,510,064/414,344,649.20
  6. Step 6: Final answer
    x = 258,079,065.22

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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.