Home / 21,303,208.80-31,954,813.20-17,901,986.40

Finding the Fourth Proportional to 21,303,208.80, 31,954,813.20 and 17,901,986.40

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Solution

The fourth proportional to 21,303,208.80, 31,954,813.20 and 17,901,986.40 is: 26,852,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,208.80 : 31,954,813.20 = 17,901,986.40 : x
  2. Step 2: Convert to fraction form
    21,303,208.80/31,954,813.20 = 17,901,986.40/x
  3. Step 3: Cross multiply
    21,303,208.80x = 31,954,813.20 × 17,901,986.40
  4. Step 4: Simplify right side
    21,303,208.80x = 572,054,631,320,940.38
  5. Step 5: Solve for x
    x = 572,054,631,320,940.38/21,303,208.80
  6. Step 6: Final answer
    x = 26,852,979.60

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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.