Home / 20,994,918.08-28,975,127.52-12,851,537.60

Finding the Fourth Proportional to 20,994,918.08, 28,975,127.52 and 12,851,537.60

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Solution

The fourth proportional to 20,994,918.08, 28,975,127.52 and 12,851,537.60 is: 17,736,432.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994,918.08 : 28,975,127.52 = 12,851,537.60 : x
  2. Step 2: Convert to fraction form
    20,994,918.08/28,975,127.52 = 12,851,537.60/x
  3. Step 3: Cross multiply
    20,994,918.08x = 28,975,127.52 × 12,851,537.60
  4. Step 4: Simplify right side
    20,994,918.08x = 372,374,940,788,074.75
  5. Step 5: Solve for x
    x = 372,374,940,788,074.75/20,994,918.08
  6. Step 6: Final answer
    x = 17,736,432.19

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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.