Home / 21,360,538.80-29,477,684.10-11,570,982.48

Finding the Fourth Proportional to 21,360,538.80, 29,477,684.10 and 11,570,982.48

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Solution

The fourth proportional to 21,360,538.80, 29,477,684.10 and 11,570,982.48 is: 15,968,031.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360,538.80 : 29,477,684.10 = 11,570,982.48 : x
  2. Step 2: Convert to fraction form
    21,360,538.80/29,477,684.10 = 11,570,982.48/x
  3. Step 3: Cross multiply
    21,360,538.80x = 29,477,684.10 × 11,570,982.48
  4. Step 4: Simplify right side
    21,360,538.80x = 341,085,766,272,074.62
  5. Step 5: Solve for x
    x = 341,085,766,272,074.62/21,360,538.80
  6. Step 6: Final answer
    x = 15,968,031.96

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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.