Finding the Fourth Proportional to 11,290,548.79, 15,579,989.13 and 6,261,459.67
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Solution
The fourth proportional to 11,290,548.79, 15,579,989.13 and 6,261,459.67 is: 8,640,277.40
Step by Step Solution
- Step 1: Write the proportion equation
11,290,548.79 : 15,579,989.13 = 6,261,459.67 : x - Step 2: Convert to fraction form
11,290,548.79/15,579,989.13 = 6,261,459.67/x - Step 3: Cross multiply
11,290,548.79x = 15,579,989.13 × 6,261,459.67 - Step 4: Simplify right side
11,290,548.79x = 97,553,473,596,533.39 - Step 5: Solve for x
x = 97,553,473,596,533.39/11,290,548.79 - Step 6: Final answer
x = 8,640,277.40
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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.