Home / 15,059,647.08-20,782,444.32-8,184,128.40

Finding the Fourth Proportional to 15,059,647.08, 20,782,444.32 and 8,184,128.40

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Solution

The fourth proportional to 15,059,647.08, 20,782,444.32 and 8,184,128.40 is: 11,294,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,059,647.08 : 20,782,444.32 = 8,184,128.40 : x
  2. Step 2: Convert to fraction form
    15,059,647.08/20,782,444.32 = 8,184,128.40/x
  3. Step 3: Cross multiply
    15,059,647.08x = 20,782,444.32 × 8,184,128.40
  4. Step 4: Simplify right side
    15,059,647.08x = 170,086,192,780,730.69
  5. Step 5: Solve for x
    x = 170,086,192,780,730.69/15,059,647.08
  6. Step 6: Final answer
    x = 11,294,168.57

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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.