Home / 30,286,521.51-45,441,231.78-11,855,638.58

Finding the Fourth Proportional to 30,286,521.51, 45,441,231.78 and 11,855,638.58

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Solution

The fourth proportional to 30,286,521.51, 45,441,231.78 and 11,855,638.58 is: 17,787,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286,521.51 : 45,441,231.78 = 11,855,638.58 : x
  2. Step 2: Convert to fraction form
    30,286,521.51/45,441,231.78 = 11,855,638.58/x
  3. Step 3: Cross multiply
    30,286,521.51x = 45,441,231.78 × 11,855,638.58
  4. Step 4: Simplify right side
    30,286,521.51x = 538,734,820,613,690.06
  5. Step 5: Solve for x
    x = 538,734,820,613,690.06/30,286,521.51
  6. Step 6: Final answer
    x = 17,787,939.77

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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.