Home / 28,638,185.58-39,519,938.85-15,585,164.24

Finding the Fourth Proportional to 28,638,185.58, 39,519,938.85 and 15,585,164.24

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Solution

The fourth proportional to 28,638,185.58, 39,519,938.85 and 15,585,164.24 is: 21,507,114.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638,185.58 : 39,519,938.85 = 15,585,164.24 : x
  2. Step 2: Convert to fraction form
    28,638,185.58/39,519,938.85 = 15,585,164.24/x
  3. Step 3: Cross multiply
    28,638,185.58x = 39,519,938.85 × 15,585,164.24
  4. Step 4: Simplify right side
    28,638,185.58x = 615,924,737,534,407
  5. Step 5: Solve for x
    x = 615,924,737,534,407/28,638,185.58
  6. Step 6: Final answer
    x = 21,507,114.54

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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.