Home / 20,879,598.98-31,309,272.54-12,246,518.36

Finding the Fourth Proportional to 20,879,598.98, 31,309,272.54 and 12,246,518.36

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Solution

The fourth proportional to 20,879,598.98, 31,309,272.54 and 12,246,518.36 is: 18,363,838.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,879,598.98 : 31,309,272.54 = 12,246,518.36 : x
  2. Step 2: Convert to fraction form
    20,879,598.98/31,309,272.54 = 12,246,518.36/x
  3. Step 3: Cross multiply
    20,879,598.98x = 31,309,272.54 × 12,246,518.36
  4. Step 4: Simplify right side
    20,879,598.98x = 383,429,580,999,353.81
  5. Step 5: Solve for x
    x = 383,429,580,999,353.81/20,879,598.98
  6. Step 6: Final answer
    x = 18,363,838.37

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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.