Home / 1,203,434,811.09-1,803,311,238.33-643,276,321.83

Finding the Fourth Proportional to 1,203,434,811.09, 1,803,311,238.33 and 643,276,321.83

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Solution

The fourth proportional to 1,203,434,811.09, 1,803,311,238.33 and 643,276,321.83 is: 963,930,418.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,434,811.09 : 1,803,311,238.33 = 643,276,321.83 : x
  2. Step 2: Convert to fraction form
    1,203,434,811.09/1,803,311,238.33 = 643,276,321.83/x
  3. Step 3: Cross multiply
    1,203,434,811.09x = 1,803,311,238.33 × 643,276,321.83
  4. Step 4: Simplify right side
    1,203,434,811.09x = 1,160,027,420,507,624,960
  5. Step 5: Solve for x
    x = 1,160,027,420,507,624,960/1,203,434,811.09
  6. Step 6: Final answer
    x = 963,930,418.01

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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.