Home / 12,459,940.80-18,679,413.60-6,476,308.80

Finding the Fourth Proportional to 12,459,940.80, 18,679,413.60 and 6,476,308.80

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Solution

The fourth proportional to 12,459,940.80, 18,679,413.60 and 6,476,308.80 is: 9,709,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,940.80 : 18,679,413.60 = 6,476,308.80 : x
  2. Step 2: Convert to fraction form
    12,459,940.80/18,679,413.60 = 6,476,308.80/x
  3. Step 3: Cross multiply
    12,459,940.80x = 18,679,413.60 × 6,476,308.80
  4. Step 4: Simplify right side
    12,459,940.80x = 120,973,650,676,519.69
  5. Step 5: Solve for x
    x = 120,973,650,676,519.69/12,459,940.80
  6. Step 6: Final answer
    x = 9,709,006.86

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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.