Home / 13,879,875.76-20,824,169.12-8,346,779.74

Finding the Fourth Proportional to 13,879,875.76, 20,824,169.12 and 8,346,779.74

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Solution

The fourth proportional to 13,879,875.76, 20,824,169.12 and 8,346,779.74 is: 12,522,788.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,875.76 : 20,824,169.12 = 8,346,779.74 : x
  2. Step 2: Convert to fraction form
    13,879,875.76/20,824,169.12 = 8,346,779.74/x
  3. Step 3: Cross multiply
    13,879,875.76x = 20,824,169.12 × 8,346,779.74
  4. Step 4: Simplify right side
    13,879,875.76x = 173,814,752,913,149.66
  5. Step 5: Solve for x
    x = 173,814,752,913,149.66/13,879,875.76
  6. Step 6: Final answer
    x = 12,522,788.81

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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.