Home / 28,204,501.97-38,907,888.12-18,420,673.16

Finding the Fourth Proportional to 28,204,501.97, 38,907,888.12 and 18,420,673.16

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Solution

The fourth proportional to 28,204,501.97, 38,907,888.12 and 18,420,673.16 is: 25,411,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204,501.97 : 38,907,888.12 = 18,420,673.16 : x
  2. Step 2: Convert to fraction form
    28,204,501.97/38,907,888.12 = 18,420,673.16/x
  3. Step 3: Cross multiply
    28,204,501.97x = 38,907,888.12 × 18,420,673.16
  4. Step 4: Simplify right side
    28,204,501.97x = 716,709,490,404,366.88
  5. Step 5: Solve for x
    x = 716,709,490,404,366.88/28,204,501.97
  6. Step 6: Final answer
    x = 25,411,173.41

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1.5x scale

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.