Home / 1,208,842,218.30-1,813,263,327.45-391,037,187.90

Finding the Fourth Proportional to 1,208,842,218.30, 1,813,263,327.45 and 391,037,187.90

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Solution

The fourth proportional to 1,208,842,218.30, 1,813,263,327.45 and 391,037,187.90 is: 586,555,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,842,218.30 : 1,813,263,327.45 = 391,037,187.90 : x
  2. Step 2: Convert to fraction form
    1,208,842,218.30/1,813,263,327.45 = 391,037,187.90/x
  3. Step 3: Cross multiply
    1,208,842,218.30x = 1,813,263,327.45 × 391,037,187.90
  4. Step 4: Simplify right side
    1,208,842,218.30x = 709,053,392,488,244,864
  5. Step 5: Solve for x
    x = 709,053,392,488,244,864/1,208,842,218.30
  6. Step 6: Final answer
    x = 586,555,781.85

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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.