Finding the Fourth Proportional to 13,566,877.79, 18,722,409.57 and 7,371,924.48
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Solution
The fourth proportional to 13,566,877.79, 18,722,409.57 and 7,371,924.48 is: 10,173,320.02
Step by Step Solution
- Step 1: Write the proportion equation
13,566,877.79 : 18,722,409.57 = 7,371,924.48 : x - Step 2: Convert to fraction form
13,566,877.79/18,722,409.57 = 7,371,924.48/x - Step 3: Cross multiply
13,566,877.79x = 18,722,409.57 × 7,371,924.48 - Step 4: Simplify right side
13,566,877.79x = 138,020,189,433,669.28 - Step 5: Solve for x
x = 138,020,189,433,669.28/13,566,877.79 - Step 6: Final answer
x = 10,173,320.02
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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.