Home / 28,893,375.36-39,871,799.90-15,840,347.84

Finding the Fourth Proportional to 28,893,375.36, 39,871,799.90 and 15,840,347.84

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Solution

The fourth proportional to 28,893,375.36, 39,871,799.90 and 15,840,347.84 is: 21,859,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893,375.36 : 39,871,799.90 = 15,840,347.84 : x
  2. Step 2: Convert to fraction form
    28,893,375.36/39,871,799.90 = 15,840,347.84/x
  3. Step 3: Cross multiply
    28,893,375.36x = 39,871,799.90 × 15,840,347.84
  4. Step 4: Simplify right side
    28,893,375.36x = 631,583,179,422,877.12
  5. Step 5: Solve for x
    x = 631,583,179,422,877.12/28,893,375.36
  6. Step 6: Final answer
    x = 21,859,099.93

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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.