Home / 20,477,411.13-28,258,659.39-11,184,987.12

Finding the Fourth Proportional to 20,477,411.13, 28,258,659.39 and 11,184,987.12

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Solution

The fourth proportional to 20,477,411.13, 28,258,659.39 and 11,184,987.12 is: 15,435,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477,411.13 : 28,258,659.39 = 11,184,987.12 : x
  2. Step 2: Convert to fraction form
    20,477,411.13/28,258,659.39 = 11,184,987.12/x
  3. Step 3: Cross multiply
    20,477,411.13x = 28,258,659.39 × 11,184,987.12
  4. Step 4: Simplify right side
    20,477,411.13x = 316,072,741,305,617.06
  5. Step 5: Solve for x
    x = 316,072,741,305,617.06/20,477,411.13
  6. Step 6: Final answer
    x = 15,435,190.48

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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.