Home / 638,525,143,121.30-957,790,199,572.10-154,478,586,756.11

Finding the Fourth Proportional to 638,525,143,121.30, 957,790,199,572.10 and 154,478,586,756.11

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Solution

The fourth proportional to 638,525,143,121.30, 957,790,199,572.10 and 154,478,586,756.11 is: 231,718,481,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,525,143,121.30 : 957,790,199,572.10 = 154,478,586,756.11 : x
  2. Step 2: Convert to fraction form
    638,525,143,121.30/957,790,199,572.10 = 154,478,586,756.11/x
  3. Step 3: Cross multiply
    638,525,143,121.30x = 957,790,199,572.10 × 154,478,586,756.11
  4. Step 4: Simplify right side
    638,525,143,121.30x = 147,958,076,438,750,538,235,904
  5. Step 5: Solve for x
    x = 147,958,076,438,750,538,235,904/638,525,143,121.30
  6. Step 6: Final answer
    x = 231,718,481,304.41

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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.