Home / 19,320,837.60-28,948,078.80-12,585,784.80

Finding the Fourth Proportional to 19,320,837.60, 28,948,078.80 and 12,585,784.80

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Solution

The fourth proportional to 19,320,837.60, 28,948,078.80 and 12,585,784.80 is: 18,857,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,837.60 : 28,948,078.80 = 12,585,784.80 : x
  2. Step 2: Convert to fraction form
    19,320,837.60/28,948,078.80 = 12,585,784.80/x
  3. Step 3: Cross multiply
    19,320,837.60x = 28,948,078.80 × 12,585,784.80
  4. Step 4: Simplify right side
    19,320,837.60x = 364,334,290,150,242.25
  5. Step 5: Solve for x
    x = 364,334,290,150,242.25/19,320,837.60
  6. Step 6: Final answer
    x = 18,857,064.98

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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.