Home / 21,708,021.60-32,562,032.40-13,190,968.80

Finding the Fourth Proportional to 21,708,021.60, 32,562,032.40 and 13,190,968.80

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Solution

The fourth proportional to 21,708,021.60, 32,562,032.40 and 13,190,968.80 is: 19,786,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708,021.60 : 32,562,032.40 = 13,190,968.80 : x
  2. Step 2: Convert to fraction form
    21,708,021.60/32,562,032.40 = 13,190,968.80/x
  3. Step 3: Cross multiply
    21,708,021.60x = 32,562,032.40 × 13,190,968.80
  4. Step 4: Simplify right side
    21,708,021.60x = 429,524,753,452,989.12
  5. Step 5: Solve for x
    x = 429,524,753,452,989.12/21,708,021.60
  6. Step 6: Final answer
    x = 19,786,453.20

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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.