Home / 12,528,046.45-18,792,069.68-10,288,558.45

Finding the Fourth Proportional to 12,528,046.45, 18,792,069.68 and 10,288,558.45

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Solution

The fourth proportional to 12,528,046.45, 18,792,069.68 and 10,288,558.45 is: 15,432,837.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,046.45 : 18,792,069.68 = 10,288,558.45 : x
  2. Step 2: Convert to fraction form
    12,528,046.45/18,792,069.68 = 10,288,558.45/x
  3. Step 3: Cross multiply
    12,528,046.45x = 18,792,069.68 × 10,288,558.45
  4. Step 4: Simplify right side
    12,528,046.45x = 193,343,307,299,152.78
  5. Step 5: Solve for x
    x = 193,343,307,299,152.78/12,528,046.45
  6. Step 6: Final answer
    x = 15,432,837.68

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Similar ratio
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1.5x scale

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.