Finding the Fourth Proportional to 21,108,781.04, 29,130,173.96 and 11,450,989.04
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Solution
The fourth proportional to 21,108,781.04, 29,130,173.96 and 11,450,989.04 is: 15,802,395.32
Step by Step Solution
- Step 1: Write the proportion equation
21,108,781.04 : 29,130,173.96 = 11,450,989.04 : x - Step 2: Convert to fraction form
21,108,781.04/29,130,173.96 = 11,450,989.04/x - Step 3: Cross multiply
21,108,781.04x = 29,130,173.96 × 11,450,989.04 - Step 4: Simplify right side
21,108,781.04x = 333,569,302,749,253.38 - Step 5: Solve for x
x = 333,569,302,749,253.38/21,108,781.04 - Step 6: Final answer
x = 15,802,395.32
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1.5x scale
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.