Finding the Fourth Proportional to 15,316,135.49, 21,136,267.40 and 8,440,617.56
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Solution
The fourth proportional to 15,316,135.49, 21,136,267.40 and 8,440,617.56 is: 11,648,052.46
Step by Step Solution
- Step 1: Write the proportion equation
15,316,135.49 : 21,136,267.40 = 8,440,617.56 : x - Step 2: Convert to fraction form
15,316,135.49/21,136,267.40 = 8,440,617.56/x - Step 3: Cross multiply
15,316,135.49x = 21,136,267.40 × 8,440,617.56 - Step 4: Simplify right side
15,316,135.49x = 178,403,149,621,411.09 - Step 5: Solve for x
x = 178,403,149,621,411.09/15,316,135.49 - Step 6: Final answer
x = 11,648,052.46
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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.