Home / 16,771,858.80-25,157,788.20-12,740,780.40

Finding the Fourth Proportional to 16,771,858.80, 25,157,788.20 and 12,740,780.40

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Solution

The fourth proportional to 16,771,858.80, 25,157,788.20 and 12,740,780.40 is: 19,111,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,771,858.80 : 25,157,788.20 = 12,740,780.40 : x
  2. Step 2: Convert to fraction form
    16,771,858.80/25,157,788.20 = 12,740,780.40/x
  3. Step 3: Cross multiply
    16,771,858.80x = 25,157,788.20 × 12,740,780.40
  4. Step 4: Simplify right side
    16,771,858.80x = 320,529,854,805,911.25
  5. Step 5: Solve for x
    x = 320,529,854,805,911.25/16,771,858.80
  6. Step 6: Final answer
    x = 19,111,170.60

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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.