Home / 20,630,289.63-28,470,482.26-11,338,189.07

Finding the Fourth Proportional to 20,630,289.63, 28,470,482.26 and 11,338,189.07

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Solution

The fourth proportional to 20,630,289.63, 28,470,482.26 and 11,338,189.07 is: 15,647,076.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,289.63 : 28,470,482.26 = 11,338,189.07 : x
  2. Step 2: Convert to fraction form
    20,630,289.63/28,470,482.26 = 11,338,189.07/x
  3. Step 3: Cross multiply
    20,630,289.63x = 28,470,482.26 × 11,338,189.07
  4. Step 4: Simplify right side
    20,630,289.63x = 322,803,710,820,791.62
  5. Step 5: Solve for x
    x = 322,803,710,820,791.62/20,630,289.63
  6. Step 6: Final answer
    x = 15,647,076.05

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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.