Home / 1,191,022,399.43-1,786,154,570.71-393,190,983.93

Finding the Fourth Proportional to 1,191,022,399.43, 1,786,154,570.71 and 393,190,983.93

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Solution

The fourth proportional to 1,191,022,399.43, 1,786,154,570.71 and 393,190,983.93 is: 589,661,347.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,022,399.43 : 1,786,154,570.71 = 393,190,983.93 : x
  2. Step 2: Convert to fraction form
    1,191,022,399.43/1,786,154,570.71 = 393,190,983.93/x
  3. Step 3: Cross multiply
    1,191,022,399.43x = 1,786,154,570.71 × 393,190,983.93
  4. Step 4: Simplify right side
    1,191,022,399.43x = 702,299,873,108,531,712
  5. Step 5: Solve for x
    x = 702,299,873,108,531,712/1,191,022,399.43
  6. Step 6: Final answer
    x = 589,661,347.63

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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.