Home / 15,523,420.57-21,421,435.52-8,906,606.44

Finding the Fourth Proportional to 15,523,420.57, 21,421,435.52 and 8,906,606.44

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Solution

The fourth proportional to 15,523,420.57, 21,421,435.52 and 8,906,606.44 is: 12,290,609.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523,420.57 : 21,421,435.52 = 8,906,606.44 : x
  2. Step 2: Convert to fraction form
    15,523,420.57/21,421,435.52 = 8,906,606.44/x
  3. Step 3: Cross multiply
    15,523,420.57x = 21,421,435.52 × 8,906,606.44
  4. Step 4: Simplify right side
    15,523,420.57x = 190,792,295,525,189.69
  5. Step 5: Solve for x
    x = 190,792,295,525,189.69/15,523,420.57
  6. Step 6: Final answer
    x = 12,290,609.19

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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.