Home / 30,167,391.30-41,651,828.01-28,240,031.94

Finding the Fourth Proportional to 30,167,391.30, 41,651,828.01 and 28,240,031.94

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Solution

The fourth proportional to 30,167,391.30, 41,651,828.01 and 28,240,031.94 is: 38,990,741.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,167,391.30 : 41,651,828.01 = 28,240,031.94 : x
  2. Step 2: Convert to fraction form
    30,167,391.30/41,651,828.01 = 28,240,031.94/x
  3. Step 3: Cross multiply
    30,167,391.30x = 41,651,828.01 × 28,240,031.94
  4. Step 4: Simplify right side
    30,167,391.30x = 1,176,248,953,361,786.75
  5. Step 5: Solve for x
    x = 1,176,248,953,361,786.75/30,167,391.30
  6. Step 6: Final answer
    x = 38,990,741.42

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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.