Home / 144,121,811.55-216,248,593.82-78,444,561.30

Finding the Fourth Proportional to 144,121,811.55, 216,248,593.82 and 78,444,561.30

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Solution

The fourth proportional to 144,121,811.55, 216,248,593.82 and 78,444,561.30 is: 117,702,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,121,811.55 : 216,248,593.82 = 78,444,561.30 : x
  2. Step 2: Convert to fraction form
    144,121,811.55/216,248,593.82 = 78,444,561.30/x
  3. Step 3: Cross multiply
    144,121,811.55x = 216,248,593.82 × 78,444,561.30
  4. Step 4: Simplify right side
    144,121,811.55x = 16,963,526,073,559,568
  5. Step 5: Solve for x
    x = 16,963,526,073,559,568/144,121,811.55
  6. Step 6: Final answer
    x = 117,702,698.09

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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.