Home / 5,378,736.69-8,068,899.04-1,920,208.21

Finding the Fourth Proportional to 5,378,736.69, 8,068,899.04 and 1,920,208.21

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Solution

The fourth proportional to 5,378,736.69, 8,068,899.04 and 1,920,208.21 is: 2,880,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,736.69 : 8,068,899.04 = 1,920,208.21 : x
  2. Step 2: Convert to fraction form
    5,378,736.69/8,068,899.04 = 1,920,208.21/x
  3. Step 3: Cross multiply
    5,378,736.69x = 8,068,899.04 × 1,920,208.21
  4. Step 4: Simplify right side
    5,378,736.69x = 15,493,966,157,296.35
  5. Step 5: Solve for x
    x = 15,493,966,157,296.35/5,378,736.69
  6. Step 6: Final answer
    x = 2,880,595.77

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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.