Home / 12,476,678.60-18,683,525.10-8,193,657.80

Finding the Fourth Proportional to 12,476,678.60, 18,683,525.10 and 8,193,657.80

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Solution

The fourth proportional to 12,476,678.60, 18,683,525.10 and 8,193,657.80 is: 12,269,804.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,678.60 : 18,683,525.10 = 8,193,657.80 : x
  2. Step 2: Convert to fraction form
    12,476,678.60/18,683,525.10 = 8,193,657.80/x
  3. Step 3: Cross multiply
    12,476,678.60x = 18,683,525.10 × 8,193,657.80
  4. Step 4: Simplify right side
    12,476,678.60x = 153,086,411,167,110.78
  5. Step 5: Solve for x
    x = 153,086,411,167,110.78/12,476,678.60
  6. Step 6: Final answer
    x = 12,269,804.82

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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.