Home / 28,190,468.13-38,903,915.40-15,800,790.54

Finding the Fourth Proportional to 28,190,468.13, 38,903,915.40 and 15,800,790.54

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Solution

The fourth proportional to 28,190,468.13, 38,903,915.40 and 15,800,790.54 is: 21,805,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190,468.13 : 38,903,915.40 = 15,800,790.54 : x
  2. Step 2: Convert to fraction form
    28,190,468.13/38,903,915.40 = 15,800,790.54/x
  3. Step 3: Cross multiply
    28,190,468.13x = 38,903,915.40 × 15,800,790.54
  4. Step 4: Simplify right side
    28,190,468.13x = 614,712,618,421,280.25
  5. Step 5: Solve for x
    x = 614,712,618,421,280.25/28,190,468.13
  6. Step 6: Final answer
    x = 21,805,690.33

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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.