Finding the Fourth Proportional to 7,436,478.21, 11,151,126.99 and 3,117,368.31
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Solution
The fourth proportional to 7,436,478.21, 11,151,126.99 and 3,117,368.31 is: 4,674,547.40
Step by Step Solution
- Step 1: Write the proportion equation
7,436,478.21 : 11,151,126.99 = 3,117,368.31 : x - Step 2: Convert to fraction form
7,436,478.21/11,151,126.99 = 3,117,368.31/x - Step 3: Cross multiply
7,436,478.21x = 11,151,126.99 × 3,117,368.31 - Step 4: Simplify right side
7,436,478.21x = 34,762,169,899,411.69 - Step 5: Solve for x
x = 34,762,169,899,411.69/7,436,478.21 - Step 6: Final answer
x = 4,674,547.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.