Home / 28,103,199.38-38,770,539.57-18,813,762.36

Finding the Fourth Proportional to 28,103,199.38, 38,770,539.57 and 18,813,762.36

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Solution

The fourth proportional to 28,103,199.38, 38,770,539.57 and 18,813,762.36 is: 25,955,041.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103,199.38 : 38,770,539.57 = 18,813,762.36 : x
  2. Step 2: Convert to fraction form
    28,103,199.38/38,770,539.57 = 18,813,762.36/x
  3. Step 3: Cross multiply
    28,103,199.38x = 38,770,539.57 × 18,813,762.36
  4. Step 4: Simplify right side
    28,103,199.38x = 729,419,718,038,956.62
  5. Step 5: Solve for x
    x = 729,419,718,038,956.62/28,103,199.38
  6. Step 6: Final answer
    x = 25,955,041.93

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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.