Home / 16,929,219.60-25,393,829.40-12,618,205.20

Finding the Fourth Proportional to 16,929,219.60, 25,393,829.40 and 12,618,205.20

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Solution

The fourth proportional to 16,929,219.60, 25,393,829.40 and 12,618,205.20 is: 18,927,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,929,219.60 : 25,393,829.40 = 12,618,205.20 : x
  2. Step 2: Convert to fraction form
    16,929,219.60/25,393,829.40 = 12,618,205.20/x
  3. Step 3: Cross multiply
    16,929,219.60x = 25,393,829.40 × 12,618,205.20
  4. Step 4: Simplify right side
    16,929,219.60x = 320,424,550,182,992.81
  5. Step 5: Solve for x
    x = 320,424,550,182,992.81/16,929,219.60
  6. Step 6: Final answer
    x = 18,927,307.80

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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.