Home / 7,078,720-10,618,118.88-1,759,936

Finding the Fourth Proportional to 7,078,720, 10,618,118.88 and 1,759,936

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Solution

The fourth proportional to 7,078,720, 10,618,118.88 and 1,759,936 is: 2,639,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078,720 : 10,618,118.88 = 1,759,936 : x
  2. Step 2: Convert to fraction form
    7,078,720/10,618,118.88 = 1,759,936/x
  3. Step 3: Cross multiply
    7,078,720x = 10,618,118.88 × 1,759,936
  4. Step 4: Simplify right side
    7,078,720x = 18,687,209,669,191.68
  5. Step 5: Solve for x
    x = 18,687,209,669,191.68/7,078,720
  6. Step 6: Final answer
    x = 2,639,913.67

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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.