Home / 28,204,500.97-38,907,886.74-18,420,672.16

Finding the Fourth Proportional to 28,204,500.97, 38,907,886.74 and 18,420,672.16

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Solution

The fourth proportional to 28,204,500.97, 38,907,886.74 and 18,420,672.16 is: 25,411,172.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204,500.97 : 38,907,886.74 = 18,420,672.16 : x
  2. Step 2: Convert to fraction form
    28,204,500.97/38,907,886.74 = 18,420,672.16/x
  3. Step 3: Cross multiply
    28,204,500.97x = 38,907,886.74 × 18,420,672.16
  4. Step 4: Simplify right side
    28,204,500.97x = 716,709,426,128,460.75
  5. Step 5: Solve for x
    x = 716,709,426,128,460.75/28,204,500.97
  6. Step 6: Final answer
    x = 25,411,172.03

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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.