Home / 18,709,123-25,818,589.74-10,124,419

Finding the Fourth Proportional to 18,709,123, 25,818,589.74 and 10,124,419

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Solution

The fourth proportional to 18,709,123, 25,818,589.74 and 10,124,419 is: 13,971,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,123 : 25,818,589.74 = 10,124,419 : x
  2. Step 2: Convert to fraction form
    18,709,123/25,818,589.74 = 10,124,419/x
  3. Step 3: Cross multiply
    18,709,123x = 25,818,589.74 × 10,124,419
  4. Step 4: Simplify right side
    18,709,123x = 261,398,220,516,861.03
  5. Step 5: Solve for x
    x = 261,398,220,516,861.03/18,709,123
  6. Step 6: Final answer
    x = 13,971,698.22

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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.