Home / 15,922,619.84-21,971,969.42-8,858,456.75

Finding the Fourth Proportional to 15,922,619.84, 21,971,969.42 and 8,858,456.75

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Solution

The fourth proportional to 15,922,619.84, 21,971,969.42 and 8,858,456.75 is: 12,223,977.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922,619.84 : 21,971,969.42 = 8,858,456.75 : x
  2. Step 2: Convert to fraction form
    15,922,619.84/21,971,969.42 = 8,858,456.75/x
  3. Step 3: Cross multiply
    15,922,619.84x = 21,971,969.42 × 8,858,456.75
  4. Step 4: Simplify right side
    15,922,619.84x = 194,637,740,830,030.22
  5. Step 5: Solve for x
    x = 194,637,740,830,030.22/15,922,619.84
  6. Step 6: Final answer
    x = 12,223,977.13

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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.