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Finding the Fourth Proportional to 1,345,765,400.12, 1,857,078,767.87 and 751,003,204.97

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Solution

The fourth proportional to 1,345,765,400.12, 1,857,078,767.87 and 751,003,204.97 is: 1,036,341,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,765,400.12 : 1,857,078,767.87 = 751,003,204.97 : x
  2. Step 2: Convert to fraction form
    1,345,765,400.12/1,857,078,767.87 = 751,003,204.97/x
  3. Step 3: Cross multiply
    1,345,765,400.12x = 1,857,078,767.87 × 751,003,204.97
  4. Step 4: Simplify right side
    1,345,765,400.12x = 1,394,672,106,555,849,984
  5. Step 5: Solve for x
    x = 1,394,672,106,555,849,984/1,345,765,400.12
  6. Step 6: Final answer
    x = 1,036,341,182.82

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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.