Home / 28,731,174.37-39,649,858.01-15,679,274.03

Finding the Fourth Proportional to 28,731,174.37, 39,649,858.01 and 15,679,274.03

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Solution

The fourth proportional to 28,731,174.37, 39,649,858.01 and 15,679,274.03 is: 21,637,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,174.37 : 39,649,858.01 = 15,679,274.03 : x
  2. Step 2: Convert to fraction form
    28,731,174.37/39,649,858.01 = 15,679,274.03/x
  3. Step 3: Cross multiply
    28,731,174.37x = 39,649,858.01 × 15,679,274.03
  4. Step 4: Simplify right side
    28,731,174.37x = 621,680,988,830,329.38
  5. Step 5: Solve for x
    x = 621,680,988,830,329.38/28,731,174.37
  6. Step 6: Final answer
    x = 21,637,855.14

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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.