Home / 1,180,192,161.69-1,628,656,750.67-644,343,809.94

Finding the Fourth Proportional to 1,180,192,161.69, 1,628,656,750.67 and 644,343,809.94

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Solution

The fourth proportional to 1,180,192,161.69, 1,628,656,750.67 and 644,343,809.94 is: 889,189,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,192,161.69 : 1,628,656,750.67 = 644,343,809.94 : x
  2. Step 2: Convert to fraction form
    1,180,192,161.69/1,628,656,750.67 = 644,343,809.94/x
  3. Step 3: Cross multiply
    1,180,192,161.69x = 1,628,656,750.67 × 644,343,809.94
  4. Step 4: Simplify right side
    1,180,192,161.69x = 1,049,414,895,807,986,816
  5. Step 5: Solve for x
    x = 1,049,414,895,807,986,816/1,180,192,161.69
  6. Step 6: Final answer
    x = 889,189,853.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.