Home / 20,630,285.06-28,470,475.97-11,338,184.50

Finding the Fourth Proportional to 20,630,285.06, 28,470,475.97 and 11,338,184.50

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Solution

The fourth proportional to 20,630,285.06, 28,470,475.97 and 11,338,184.50 is: 15,647,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,285.06 : 28,470,475.97 = 11,338,184.50 : x
  2. Step 2: Convert to fraction form
    20,630,285.06/28,470,475.97 = 11,338,184.50/x
  3. Step 3: Cross multiply
    20,630,285.06x = 28,470,475.97 × 11,338,184.50
  4. Step 4: Simplify right side
    20,630,285.06x = 322,803,509,151,633.12
  5. Step 5: Solve for x
    x = 322,803,509,151,633.12/20,630,285.06
  6. Step 6: Final answer
    x = 15,647,069.74

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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.