Home / 20,868,999.90-28,794,907.28-12,048,298.34

Finding the Fourth Proportional to 20,868,999.90, 28,794,907.28 and 12,048,298.34

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Solution

The fourth proportional to 20,868,999.90, 28,794,907.28 and 12,048,298.34 is: 16,624,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868,999.90 : 28,794,907.28 = 12,048,298.34 : x
  2. Step 2: Convert to fraction form
    20,868,999.90/28,794,907.28 = 12,048,298.34/x
  3. Step 3: Cross multiply
    20,868,999.90x = 28,794,907.28 × 12,048,298.34
  4. Step 4: Simplify right side
    20,868,999.90x = 346,929,633,582,077.94
  5. Step 5: Solve for x
    x = 346,929,633,582,077.94/20,868,999.90
  6. Step 6: Final answer
    x = 16,624,161.93

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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.