Home / 1,279,155,605.40-1,918,733,408.10-1,187,322,600.60

Finding the Fourth Proportional to 1,279,155,605.40, 1,918,733,408.10 and 1,187,322,600.60

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Solution

The fourth proportional to 1,279,155,605.40, 1,918,733,408.10 and 1,187,322,600.60 is: 1,780,983,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,155,605.40 : 1,918,733,408.10 = 1,187,322,600.60 : x
  2. Step 2: Convert to fraction form
    1,279,155,605.40/1,918,733,408.10 = 1,187,322,600.60/x
  3. Step 3: Cross multiply
    1,279,155,605.40x = 1,918,733,408.10 × 1,187,322,600.60
  4. Step 4: Simplify right side
    1,279,155,605.40x = 2,278,155,539,963,392,768
  5. Step 5: Solve for x
    x = 2,278,155,539,963,392,768/1,279,155,605.40
  6. Step 6: Final answer
    x = 1,780,983,900.90

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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.