Home / 28,572,873.12-39,415,448.88-18,100,412.28

Finding the Fourth Proportional to 28,572,873.12, 39,415,448.88 and 18,100,412.28

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Solution

The fourth proportional to 28,572,873.12, 39,415,448.88 and 18,100,412.28 is: 24,968,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572,873.12 : 39,415,448.88 = 18,100,412.28 : x
  2. Step 2: Convert to fraction form
    28,572,873.12/39,415,448.88 = 18,100,412.28/x
  3. Step 3: Cross multiply
    28,572,873.12x = 39,415,448.88 × 18,100,412.28
  4. Step 4: Simplify right side
    28,572,873.12x = 713,435,874,929,264.38
  5. Step 5: Solve for x
    x = 713,435,874,929,264.38/28,572,873.12
  6. Step 6: Final answer
    x = 24,968,993.21

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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.