Home / 18,683,639.80-25,783,438.98-10,423,703.37

Finding the Fourth Proportional to 18,683,639.80, 25,783,438.98 and 10,423,703.37

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Solution

The fourth proportional to 18,683,639.80, 25,783,438.98 and 10,423,703.37 is: 14,384,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,639.80 : 25,783,438.98 = 10,423,703.37 : x
  2. Step 2: Convert to fraction form
    18,683,639.80/25,783,438.98 = 10,423,703.37/x
  3. Step 3: Cross multiply
    18,683,639.80x = 25,783,438.98 × 10,423,703.37
  4. Step 4: Simplify right side
    18,683,639.80x = 268,758,919,718,126.94
  5. Step 5: Solve for x
    x = 268,758,919,718,126.94/18,683,639.80
  6. Step 6: Final answer
    x = 14,384,719.60

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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.