Home / 12,289,918.12-16,955,356.74-7,698,245.80

Finding the Fourth Proportional to 12,289,918.12, 16,955,356.74 and 7,698,245.80

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Solution

The fourth proportional to 12,289,918.12, 16,955,356.74 and 7,698,245.80 is: 10,620,616.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289,918.12 : 16,955,356.74 = 7,698,245.80 : x
  2. Step 2: Convert to fraction form
    12,289,918.12/16,955,356.74 = 7,698,245.80/x
  3. Step 3: Cross multiply
    12,289,918.12x = 16,955,356.74 × 7,698,245.80
  4. Step 4: Simplify right side
    12,289,918.12x = 130,526,503,811,206.67
  5. Step 5: Solve for x
    x = 130,526,503,811,206.67/12,289,918.12
  6. Step 6: Final answer
    x = 10,620,616.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.