Home / 18,799,915.76-28,199,645.25-5,153,050.65

Finding the Fourth Proportional to 18,799,915.76, 28,199,645.25 and 5,153,050.65

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Solution

The fourth proportional to 18,799,915.76, 28,199,645.25 and 5,153,050.65 is: 7,729,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799,915.76 : 28,199,645.25 = 5,153,050.65 : x
  2. Step 2: Convert to fraction form
    18,799,915.76/28,199,645.25 = 5,153,050.65/x
  3. Step 3: Cross multiply
    18,799,915.76x = 28,199,645.25 × 5,153,050.65
  4. Step 4: Simplify right side
    18,799,915.76x = 145,314,200,285,281.94
  5. Step 5: Solve for x
    x = 145,314,200,285,281.94/18,799,915.76
  6. Step 6: Final answer
    x = 7,729,513.37

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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.