Home / 18,684,628.65-28,026,942.98-11,472,777.45

Finding the Fourth Proportional to 18,684,628.65, 28,026,942.98 and 11,472,777.45

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Solution

The fourth proportional to 18,684,628.65, 28,026,942.98 and 11,472,777.45 is: 17,209,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,628.65 : 28,026,942.98 = 11,472,777.45 : x
  2. Step 2: Convert to fraction form
    18,684,628.65/28,026,942.98 = 11,472,777.45/x
  3. Step 3: Cross multiply
    18,684,628.65x = 28,026,942.98 × 11,472,777.45
  4. Step 4: Simplify right side
    18,684,628.65x = 321,546,879,356,015.94
  5. Step 5: Solve for x
    x = 321,546,879,356,015.94/18,684,628.65
  6. Step 6: Final answer
    x = 17,209,166.18

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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.