Finding the Fourth Proportional to 21,660,769.19, 32,490,903.53 and 5,266,146.49
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Solution
The fourth proportional to 21,660,769.19, 32,490,903.53 and 5,266,146.49 is: 7,899,158.89
Step by Step Solution
- Step 1: Write the proportion equation
21,660,769.19 : 32,490,903.53 = 5,266,146.49 : x - Step 2: Convert to fraction form
21,660,769.19/32,490,903.53 = 5,266,146.49/x - Step 3: Cross multiply
21,660,769.19x = 32,490,903.53 × 5,266,146.49 - Step 4: Simplify right side
21,660,769.19x = 171,101,857,513,376.22 - Step 5: Solve for x
x = 171,101,857,513,376.22/21,660,769.19 - Step 6: Final answer
x = 7,899,158.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.