Home / 638,525,143,120.40-957,790,199,570.80-154,478,586,755.29

Finding the Fourth Proportional to 638,525,143,120.40, 957,790,199,570.80 and 154,478,586,755.29

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Solution

The fourth proportional to 638,525,143,120.40, 957,790,199,570.80 and 154,478,586,755.29 is: 231,718,481,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,525,143,120.40 : 957,790,199,570.80 = 154,478,586,755.29 : x
  2. Step 2: Convert to fraction form
    638,525,143,120.40/957,790,199,570.80 = 154,478,586,755.29/x
  3. Step 3: Cross multiply
    638,525,143,120.40x = 957,790,199,570.80 × 154,478,586,755.29
  4. Step 4: Simplify right side
    638,525,143,120.40x = 147,958,076,437,764,373,479,424
  5. Step 5: Solve for x
    x = 147,958,076,437,764,373,479,424/638,525,143,120.40
  6. Step 6: Final answer
    x = 231,718,481,303.20

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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.