Finding the Fourth Proportional to 15,724,916.62, 21,701,278.06 and 9,447,364.08
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Solution
The fourth proportional to 15,724,916.62, 21,701,278.06 and 9,447,364.08 is: 13,037,899.01
Step by Step Solution
- Step 1: Write the proportion equation
15,724,916.62 : 21,701,278.06 = 9,447,364.08 : x - Step 2: Convert to fraction form
15,724,916.62/21,701,278.06 = 9,447,364.08/x - Step 3: Cross multiply
15,724,916.62x = 21,701,278.06 × 9,447,364.08 - Step 4: Simplify right side
15,724,916.62x = 205,019,874,834,136.06 - Step 5: Solve for x
x = 205,019,874,834,136.06/15,724,916.62 - Step 6: Final answer
x = 13,037,899.01
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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.