Home / 192,398,899.28-288,697,570.68-90,173,322.32

Finding the Fourth Proportional to 192,398,899.28, 288,697,570.68 and 90,173,322.32

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Solution

The fourth proportional to 192,398,899.28, 288,697,570.68 and 90,173,322.32 is: 135,306,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,398,899.28 : 288,697,570.68 = 90,173,322.32 : x
  2. Step 2: Convert to fraction form
    192,398,899.28/288,697,570.68 = 90,173,322.32/x
  3. Step 3: Cross multiply
    192,398,899.28x = 288,697,570.68 × 90,173,322.32
  4. Step 4: Simplify right side
    192,398,899.28x = 26,032,819,093,928,620
  5. Step 5: Solve for x
    x = 26,032,819,093,928,620/192,398,899.28
  6. Step 6: Final answer
    x = 135,306,486.63

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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.