Home / 28,892,648.95-39,871,845.74-15,839,627.84

Finding the Fourth Proportional to 28,892,648.95, 39,871,845.74 and 15,839,627.84

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Solution

The fourth proportional to 28,892,648.95, 39,871,845.74 and 15,839,627.84 is: 21,858,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892,648.95 : 39,871,845.74 = 15,839,627.84 : x
  2. Step 2: Convert to fraction form
    28,892,648.95/39,871,845.74 = 15,839,627.84/x
  3. Step 3: Cross multiply
    28,892,648.95x = 39,871,845.74 × 15,839,627.84
  4. Step 4: Simplify right side
    28,892,648.95x = 631,555,197,805,248.62
  5. Step 5: Solve for x
    x = 631,555,197,805,248.62/28,892,648.95
  6. Step 6: Final answer
    x = 21,858,681.04

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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.