Home / 15,815,969.63-21,830,678.08-9,202,113.80

Finding the Fourth Proportional to 15,815,969.63, 21,830,678.08 and 9,202,113.80

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Solution

The fourth proportional to 15,815,969.63, 21,830,678.08 and 9,202,113.80 is: 12,701,616.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,815,969.63 : 21,830,678.08 = 9,202,113.80 : x
  2. Step 2: Convert to fraction form
    15,815,969.63/21,830,678.08 = 9,202,113.80/x
  3. Step 3: Cross multiply
    15,815,969.63x = 21,830,678.08 × 9,202,113.80
  4. Step 4: Simplify right side
    15,815,969.63x = 200,888,383,891,166.84
  5. Step 5: Solve for x
    x = 200,888,383,891,166.84/15,815,969.63
  6. Step 6: Final answer
    x = 12,701,616.69

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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.