Home / 145,302,800.80-200,519,429.16-79,222,759.24

Finding the Fourth Proportional to 145,302,800.80, 200,519,429.16 and 79,222,759.24

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Solution

The fourth proportional to 145,302,800.80, 200,519,429.16 and 79,222,759.24 is: 109,328,260.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,302,800.80 : 200,519,429.16 = 79,222,759.24 : x
  2. Step 2: Convert to fraction form
    145,302,800.80/200,519,429.16 = 79,222,759.24/x
  3. Step 3: Cross multiply
    145,302,800.80x = 200,519,429.16 × 79,222,759.24
  4. Step 4: Simplify right side
    145,302,800.80x = 15,885,702,459,284,914
  5. Step 5: Solve for x
    x = 15,885,702,459,284,914/145,302,800.80
  6. Step 6: Final answer
    x = 109,328,260.51

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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.