Home / 13,380,477.60-18,465,081.12-7,268,911.20

Finding the Fourth Proportional to 13,380,477.60, 18,465,081.12 and 7,268,911.20

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Solution

The fourth proportional to 13,380,477.60, 18,465,081.12 and 7,268,911.20 is: 10,031,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380,477.60 : 18,465,081.12 = 7,268,911.20 : x
  2. Step 2: Convert to fraction form
    13,380,477.60/18,465,081.12 = 7,268,911.20/x
  3. Step 3: Cross multiply
    13,380,477.60x = 18,465,081.12 × 7,268,911.20
  4. Step 4: Simplify right side
    13,380,477.60x = 134,221,034,962,076.56
  5. Step 5: Solve for x
    x = 134,221,034,962,076.56/13,380,477.60
  6. Step 6: Final answer
    x = 10,031,109.42

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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.