Home / 28,869,360.96-39,839,748.84-15,638,568.66

Finding the Fourth Proportional to 28,869,360.96, 39,839,748.84 and 15,638,568.66

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Solution

The fourth proportional to 28,869,360.96, 39,839,748.84 and 15,638,568.66 is: 21,581,241.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869,360.96 : 39,839,748.84 = 15,638,568.66 : x
  2. Step 2: Convert to fraction form
    28,869,360.96/39,839,748.84 = 15,638,568.66/x
  3. Step 3: Cross multiply
    28,869,360.96x = 39,839,748.84 × 15,638,568.66
  4. Step 4: Simplify right side
    28,869,360.96x = 623,036,647,631,495.38
  5. Step 5: Solve for x
    x = 623,036,647,631,495.38/28,869,360.96
  6. Step 6: Final answer
    x = 21,581,241.39

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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.