Home / 638,525,143,121.15-957,790,199,571.90-154,478,586,755.98

Finding the Fourth Proportional to 638,525,143,121.15, 957,790,199,571.90 and 154,478,586,755.98

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Solution

The fourth proportional to 638,525,143,121.15, 957,790,199,571.90 and 154,478,586,755.98 is: 231,718,481,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,525,143,121.15 : 957,790,199,571.90 = 154,478,586,755.98 : x
  2. Step 2: Convert to fraction form
    638,525,143,121.15/957,790,199,571.90 = 154,478,586,755.98/x
  3. Step 3: Cross multiply
    638,525,143,121.15x = 957,790,199,571.90 × 154,478,586,755.98
  4. Step 4: Simplify right side
    638,525,143,121.15x = 147,958,076,438,595,164,438,528
  5. Step 5: Solve for x
    x = 147,958,076,438,595,164,438,528/638,525,143,121.15
  6. Step 6: Final answer
    x = 231,718,481,304.22

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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.