Home / 12,528,057.70-18,792,086.55-10,288,569.70

Finding the Fourth Proportional to 12,528,057.70, 18,792,086.55 and 10,288,569.70

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Solution

The fourth proportional to 12,528,057.70, 18,792,086.55 and 10,288,569.70 is: 15,432,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,057.70 : 18,792,086.55 = 10,288,569.70 : x
  2. Step 2: Convert to fraction form
    12,528,057.70/18,792,086.55 = 10,288,569.70/x
  3. Step 3: Cross multiply
    12,528,057.70x = 18,792,086.55 × 10,288,569.70
  4. Step 4: Simplify right side
    12,528,057.70x = 193,343,692,278,107.53
  5. Step 5: Solve for x
    x = 193,343,692,278,107.53/12,528,057.70
  6. Step 6: Final answer
    x = 15,432,854.55

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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.