Home / 13,146,962.80-19,720,444.20-11,971,231.60

Finding the Fourth Proportional to 13,146,962.80, 19,720,444.20 and 11,971,231.60

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Solution

The fourth proportional to 13,146,962.80, 19,720,444.20 and 11,971,231.60 is: 17,956,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,962.80 : 19,720,444.20 = 11,971,231.60 : x
  2. Step 2: Convert to fraction form
    13,146,962.80/19,720,444.20 = 11,971,231.60/x
  3. Step 3: Cross multiply
    13,146,962.80x = 19,720,444.20 × 11,971,231.60
  4. Step 4: Simplify right side
    13,146,962.80x = 236,078,004,773,076.72
  5. Step 5: Solve for x
    x = 236,078,004,773,076.72/13,146,962.80
  6. Step 6: Final answer
    x = 17,956,847.40

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1.5x scale

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.