Finding the Fourth Proportional to 12,817,115.10, 17,687,178.36 and 7,312,271.94
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Solution
The fourth proportional to 12,817,115.10, 17,687,178.36 and 7,312,271.94 is: 10,090,683.98
Step by Step Solution
- Step 1: Write the proportion equation
12,817,115.10 : 17,687,178.36 = 7,312,271.94 : x - Step 2: Convert to fraction form
12,817,115.10/17,687,178.36 = 7,312,271.94/x - Step 3: Cross multiply
12,817,115.10x = 17,687,178.36 × 7,312,271.94 - Step 4: Simplify right side
12,817,115.10x = 129,333,458,019,603.22 - Step 5: Solve for x
x = 129,333,458,019,603.22/12,817,115.10 - Step 6: Final answer
x = 10,090,683.98
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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.