Finding the Fourth Proportional to 13,766,574.48, 19,000,250.70 and 7,968,553.08
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Solution
The fourth proportional to 13,766,574.48, 19,000,250.70 and 7,968,553.08 is: 10,997,979.67
Step by Step Solution
- Step 1: Write the proportion equation
13,766,574.48 : 19,000,250.70 = 7,968,553.08 : x - Step 2: Convert to fraction form
13,766,574.48/19,000,250.70 = 7,968,553.08/x - Step 3: Cross multiply
13,766,574.48x = 19,000,250.70 × 7,968,553.08 - Step 4: Simplify right side
13,766,574.48x = 151,404,506,236,257.16 - Step 5: Solve for x
x = 151,404,506,236,257.16/13,766,574.48 - Step 6: Final answer
x = 10,997,979.67
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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.