Home / 18,720,155.38-25,834,812.35-10,460,418.17

Finding the Fourth Proportional to 18,720,155.38, 25,834,812.35 and 10,460,418.17

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Solution

The fourth proportional to 18,720,155.38, 25,834,812.35 and 10,460,418.17 is: 14,435,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,155.38 : 25,834,812.35 = 10,460,418.17 : x
  2. Step 2: Convert to fraction form
    18,720,155.38/25,834,812.35 = 10,460,418.17/x
  3. Step 3: Cross multiply
    18,720,155.38x = 25,834,812.35 × 10,460,418.17
  4. Step 4: Simplify right side
    18,720,155.38x = 270,242,940,524,480.41
  5. Step 5: Solve for x
    x = 270,242,940,524,480.41/18,720,155.38
  6. Step 6: Final answer
    x = 14,435,934.69

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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.