Home / 18,865,083.72-28,303,607-6,734,287.20

Finding the Fourth Proportional to 18,865,083.72, 28,303,607 and 6,734,287.20

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Solution

The fourth proportional to 18,865,083.72, 28,303,607 and 6,734,287.20 is: 10,103,565.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865,083.72 : 28,303,607 = 6,734,287.20 : x
  2. Step 2: Convert to fraction form
    18,865,083.72/28,303,607 = 6,734,287.20/x
  3. Step 3: Cross multiply
    18,865,083.72x = 28,303,607 × 6,734,287.20
  4. Step 4: Simplify right side
    18,865,083.72x = 190,604,618,333,930.41
  5. Step 5: Solve for x
    x = 190,604,618,333,930.41/18,865,083.72
  6. Step 6: Final answer
    x = 10,103,565.99

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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.