Finding the Fourth Proportional to 13,269,478.78, 19,875,468.96 and 6,431,748.17
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Solution
The fourth proportional to 13,269,478.78, 19,875,468.96 and 6,431,748.17 is: 9,633,687.44
Step by Step Solution
- Step 1: Write the proportion equation
13,269,478.78 : 19,875,468.96 = 6,431,748.17 : x - Step 2: Convert to fraction form
13,269,478.78/19,875,468.96 = 6,431,748.17/x - Step 3: Cross multiply
13,269,478.78x = 19,875,468.96 × 6,431,748.17 - Step 4: Simplify right side
13,269,478.78x = 127,834,011,011,994.47 - Step 5: Solve for x
x = 127,834,011,011,994.47/13,269,478.78 - Step 6: Final answer
x = 9,633,687.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.