Finding the Fourth Proportional to 13,144,855.79, 18,138,950.76 and 7,264,419.68
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Solution
The fourth proportional to 13,144,855.79, 18,138,950.76 and 7,264,419.68 is: 10,024,374.02
Step by Step Solution
- Step 1: Write the proportion equation
13,144,855.79 : 18,138,950.76 = 7,264,419.68 : x - Step 2: Convert to fraction form
13,144,855.79/18,138,950.76 = 7,264,419.68/x - Step 3: Cross multiply
13,144,855.79x = 18,138,950.76 × 7,264,419.68 - Step 4: Simplify right side
13,144,855.79x = 131,768,950,875,494.97 - Step 5: Solve for x
x = 131,768,950,875,494.97/13,144,855.79 - Step 6: Final answer
x = 10,024,374.02
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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.