Home / 21,470,291.81-29,629,131.55-11,680,806.18

Finding the Fourth Proportional to 21,470,291.81, 29,629,131.55 and 11,680,806.18

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Solution

The fourth proportional to 21,470,291.81, 29,629,131.55 and 11,680,806.18 is: 16,119,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470,291.81 : 29,629,131.55 = 11,680,806.18 : x
  2. Step 2: Convert to fraction form
    21,470,291.81/29,629,131.55 = 11,680,806.18/x
  3. Step 3: Cross multiply
    21,470,291.81x = 29,629,131.55 × 11,680,806.18
  4. Step 4: Simplify right side
    21,470,291.81x = 346,092,142,999,180.19
  5. Step 5: Solve for x
    x = 346,092,142,999,180.19/21,470,291.81
  6. Step 6: Final answer
    x = 16,119,582.64

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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.