Finding the Fourth Proportional to 8,913,832.74, 12,312,628.20 and 7,371,325.08
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Solution
The fourth proportional to 8,913,832.74, 12,312,628.20 and 7,371,325.08 is: 10,181,970.84
Step by Step Solution
- Step 1: Write the proportion equation
8,913,832.74 : 12,312,628.20 = 7,371,325.08 : x - Step 2: Convert to fraction form
8,913,832.74/12,312,628.20 = 7,371,325.08/x - Step 3: Cross multiply
8,913,832.74x = 12,312,628.20 × 7,371,325.08 - Step 4: Simplify right side
8,913,832.74x = 90,760,385,051,375.25 - Step 5: Solve for x
x = 90,760,385,051,375.25/8,913,832.74 - Step 6: Final answer
x = 10,181,970.84
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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.