Home / 13,670,881.08-18,865,766.56-7,709,814.04

Finding the Fourth Proportional to 13,670,881.08, 18,865,766.56 and 7,709,814.04

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Solution

The fourth proportional to 13,670,881.08, 18,865,766.56 and 7,709,814.04 is: 10,639,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670,881.08 : 18,865,766.56 = 7,709,814.04 : x
  2. Step 2: Convert to fraction form
    13,670,881.08/18,865,766.56 = 7,709,814.04/x
  3. Step 3: Cross multiply
    13,670,881.08x = 18,865,766.56 × 7,709,814.04
  4. Step 4: Simplify right side
    13,670,881.08x = 145,451,551,899,650.50
  5. Step 5: Solve for x
    x = 145,451,551,899,650.50/13,670,881.08
  6. Step 6: Final answer
    x = 10,639,515.55

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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.