Home / 659,196,791.81-909,277,786.94-391,082,804.04

Finding the Fourth Proportional to 659,196,791.81, 909,277,786.94 and 391,082,804.04

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Solution

The fourth proportional to 659,196,791.81, 909,277,786.94 and 391,082,804.04 is: 539,448,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,196,791.81 : 909,277,786.94 = 391,082,804.04 : x
  2. Step 2: Convert to fraction form
    659,196,791.81/909,277,786.94 = 391,082,804.04/x
  3. Step 3: Cross multiply
    659,196,791.81x = 909,277,786.94 × 391,082,804.04
  4. Step 4: Simplify right side
    659,196,791.81x = 355,602,906,565,825,472
  5. Step 5: Solve for x
    x = 355,602,906,565,825,472/659,196,791.81
  6. Step 6: Final answer
    x = 539,448,782.19

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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.