Finding the Fourth Proportional to 14,108,315.49, 19,469,638.80 and 7,828,971.75
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Solution
The fourth proportional to 14,108,315.49, 19,469,638.80 and 7,828,971.75 is: 10,804,071.70
Step by Step Solution
- Step 1: Write the proportion equation
14,108,315.49 : 19,469,638.80 = 7,828,971.75 : x - Step 2: Convert to fraction form
14,108,315.49/19,469,638.80 = 7,828,971.75/x - Step 3: Cross multiply
14,108,315.49x = 19,469,638.80 × 7,828,971.75 - Step 4: Simplify right side
14,108,315.49x = 152,427,252,147,903.91 - Step 5: Solve for x
x = 152,427,252,147,903.91/14,108,315.49 - Step 6: Final answer
x = 10,804,071.70
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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.