Home / 447,041,331.40-670,561,997.10-393,293,619.40

Finding the Fourth Proportional to 447,041,331.40, 670,561,997.10 and 393,293,619.40

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Solution

The fourth proportional to 447,041,331.40, 670,561,997.10 and 393,293,619.40 is: 589,940,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,041,331.40 : 670,561,997.10 = 393,293,619.40 : x
  2. Step 2: Convert to fraction form
    447,041,331.40/670,561,997.10 = 393,293,619.40/x
  3. Step 3: Cross multiply
    447,041,331.40x = 670,561,997.10 × 393,293,619.40
  4. Step 4: Simplify right side
    447,041,331.40x = 263,727,754,871,551,296
  5. Step 5: Solve for x
    x = 263,727,754,871,551,296/447,041,331.40
  6. Step 6: Final answer
    x = 589,940,429.10

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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.