Home / 19,189,155.35-28,782,115.86-8,258,903.57

Finding the Fourth Proportional to 19,189,155.35, 28,782,115.86 and 8,258,903.57

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Solution

The fourth proportional to 19,189,155.35, 28,782,115.86 and 8,258,903.57 is: 12,387,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189,155.35 : 28,782,115.86 = 8,258,903.57 : x
  2. Step 2: Convert to fraction form
    19,189,155.35/28,782,115.86 = 8,258,903.57/x
  3. Step 3: Cross multiply
    19,189,155.35x = 28,782,115.86 × 8,258,903.57
  4. Step 4: Simplify right side
    19,189,155.35x = 237,708,719,531,233.78
  5. Step 5: Solve for x
    x = 237,708,719,531,233.78/19,189,155.35
  6. Step 6: Final answer
    x = 12,387,659.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.