Home / 28,869,362.96-39,839,751.60-15,638,570.66

Finding the Fourth Proportional to 28,869,362.96, 39,839,751.60 and 15,638,570.66

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Solution

The fourth proportional to 28,869,362.96, 39,839,751.60 and 15,638,570.66 is: 21,581,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869,362.96 : 39,839,751.60 = 15,638,570.66 : x
  2. Step 2: Convert to fraction form
    28,869,362.96/39,839,751.60 = 15,638,570.66/x
  3. Step 3: Cross multiply
    28,869,362.96x = 39,839,751.60 × 15,638,570.66
  4. Step 4: Simplify right side
    28,869,362.96x = 623,036,770,473,448.12
  5. Step 5: Solve for x
    x = 623,036,770,473,448.12/28,869,362.96
  6. Step 6: Final answer
    x = 21,581,244.15

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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.