Home / 21,387,827.60-32,081,741.40-12,884,771.60

Finding the Fourth Proportional to 21,387,827.60, 32,081,741.40 and 12,884,771.60

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Solution

The fourth proportional to 21,387,827.60, 32,081,741.40 and 12,884,771.60 is: 19,327,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,827.60 : 32,081,741.40 = 12,884,771.60 : x
  2. Step 2: Convert to fraction form
    21,387,827.60/32,081,741.40 = 12,884,771.60/x
  3. Step 3: Cross multiply
    21,387,827.60x = 32,081,741.40 × 12,884,771.60
  4. Step 4: Simplify right side
    21,387,827.60x = 413,365,910,469,264.19
  5. Step 5: Solve for x
    x = 413,365,910,469,264.19/21,387,827.60
  6. Step 6: Final answer
    x = 19,327,157.40

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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.