Home / 38,421,993.30-53,022,192.22-20,780,915.55

Finding the Fourth Proportional to 38,421,993.30, 53,022,192.22 and 20,780,915.55

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Solution

The fourth proportional to 38,421,993.30, 53,022,192.22 and 20,780,915.55 is: 28,677,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421,993.30 : 53,022,192.22 = 20,780,915.55 : x
  2. Step 2: Convert to fraction form
    38,421,993.30/53,022,192.22 = 20,780,915.55/x
  3. Step 3: Cross multiply
    38,421,993.30x = 53,022,192.22 × 20,780,915.55
  4. Step 4: Simplify right side
    38,421,993.30x = 1,101,849,698,626,788.38
  5. Step 5: Solve for x
    x = 1,101,849,698,626,788.38/38,421,993.30
  6. Step 6: Final answer
    x = 28,677,577.71

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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.