Home / 961,121,816,745.39-1,326,349,088,699.90-521,659,291,562.41

Finding the Fourth Proportional to 961,121,816,745.39, 1,326,349,088,699.90 and 521,659,291,562.41

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Solution

The fourth proportional to 961,121,816,745.39, 1,326,349,088,699.90 and 521,659,291,562.41 is: 719,890,355,125.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,121,816,745.39 : 1,326,349,088,699.90 = 521,659,291,562.41 : x
  2. Step 2: Convert to fraction form
    961,121,816,745.39/1,326,349,088,699.90 = 521,659,291,562.41/x
  3. Step 3: Cross multiply
    961,121,816,745.39x = 1,326,349,088,699.90 × 521,659,291,562.41
  4. Step 4: Simplify right side
    961,121,816,745.39x = 691,902,325,975,637,855,043,584
  5. Step 5: Solve for x
    x = 691,902,325,975,637,855,043,584/961,121,816,745.39
  6. Step 6: Final answer
    x = 719,890,355,125.43

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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.