Home / 2,180,225.07-3,008,681.21-1,213,355.09

Finding the Fourth Proportional to 2,180,225.07, 3,008,681.21 and 1,213,355.09

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Solution

The fourth proportional to 2,180,225.07, 3,008,681.21 and 1,213,355.09 is: 1,674,413.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,225.07 : 3,008,681.21 = 1,213,355.09 : x
  2. Step 2: Convert to fraction form
    2,180,225.07/3,008,681.21 = 1,213,355.09/x
  3. Step 3: Cross multiply
    2,180,225.07x = 3,008,681.21 × 1,213,355.09
  4. Step 4: Simplify right side
    2,180,225.07x = 3,650,598,670,895.95
  5. Step 5: Solve for x
    x = 3,650,598,670,895.95/2,180,225.07
  6. Step 6: Final answer
    x = 1,674,413.67

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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.