Finding the Fourth Proportional to 5,171,656.79, 7,136,886.02 and 2,997,461.07
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Solution
The fourth proportional to 5,171,656.79, 7,136,886.02 and 2,997,461.07 is: 4,136,496.07
Step by Step Solution
- Step 1: Write the proportion equation
5,171,656.79 : 7,136,886.02 = 2,997,461.07 : x - Step 2: Convert to fraction form
5,171,656.79/7,136,886.02 = 2,997,461.07/x - Step 3: Cross multiply
5,171,656.79x = 7,136,886.02 × 2,997,461.07 - Step 4: Simplify right side
5,171,656.79x = 21,392,537,975,132.48 - Step 5: Solve for x
x = 21,392,537,975,132.48/5,171,656.79 - Step 6: Final answer
x = 4,136,496.07
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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.