Home / 27,436,012.92-37,872,349.20-20,580,438.60

Finding the Fourth Proportional to 27,436,012.92, 37,872,349.20 and 20,580,438.60

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Solution

The fourth proportional to 27,436,012.92, 37,872,349.20 and 20,580,438.60 is: 28,408,995.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,436,012.92 : 37,872,349.20 = 20,580,438.60 : x
  2. Step 2: Convert to fraction form
    27,436,012.92/37,872,349.20 = 20,580,438.60/x
  3. Step 3: Cross multiply
    27,436,012.92x = 37,872,349.20 × 20,580,438.60
  4. Step 4: Simplify right side
    27,436,012.92x = 779,429,557,348,359.25
  5. Step 5: Solve for x
    x = 779,429,557,348,359.25/27,436,012.92
  6. Step 6: Final answer
    x = 28,408,995.13

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1.5x scale

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.