Home / 945,290,984.97-1,418,147,284.80-290,308,111.86

Finding the Fourth Proportional to 945,290,984.97, 1,418,147,284.80 and 290,308,111.86

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Solution

The fourth proportional to 945,290,984.97, 1,418,147,284.80 and 290,308,111.86 is: 435,526,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,290,984.97 : 1,418,147,284.80 = 290,308,111.86 : x
  2. Step 2: Convert to fraction form
    945,290,984.97/1,418,147,284.80 = 290,308,111.86/x
  3. Step 3: Cross multiply
    945,290,984.97x = 1,418,147,284.80 × 290,308,111.86
  4. Step 4: Simplify right side
    945,290,984.97x = 411,699,660,589,673,664
  5. Step 5: Solve for x
    x = 411,699,660,589,673,664/945,290,984.97
  6. Step 6: Final answer
    x = 435,526,908.79

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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.