Home / 1,391,857,296.96-1,918,980,027.84-1,140,033,986.40

Finding the Fourth Proportional to 1,391,857,296.96, 1,918,980,027.84 and 1,140,033,986.40

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Solution

The fourth proportional to 1,391,857,296.96, 1,918,980,027.84 and 1,140,033,986.40 is: 1,571,786,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,857,296.96 : 1,918,980,027.84 = 1,140,033,986.40 : x
  2. Step 2: Convert to fraction form
    1,391,857,296.96/1,918,980,027.84 = 1,140,033,986.40/x
  3. Step 3: Cross multiply
    1,391,857,296.96x = 1,918,980,027.84 × 1,140,033,986.40
  4. Step 4: Simplify right side
    1,391,857,296.96x = 2,187,702,450,960,418,304
  5. Step 5: Solve for x
    x = 2,187,702,450,960,418,304/1,391,857,296.96
  6. Step 6: Final answer
    x = 1,571,786,458.09

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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.