Finding the Fourth Proportional to 15,724,916.12, 21,701,277.37 and 9,447,363.58
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Solution
The fourth proportional to 15,724,916.12, 21,701,277.37 and 9,447,363.58 is: 13,037,898.32
Step by Step Solution
- Step 1: Write the proportion equation
15,724,916.12 : 21,701,277.37 = 9,447,363.58 : x - Step 2: Convert to fraction form
15,724,916.12/21,701,277.37 = 9,447,363.58/x - Step 3: Cross multiply
15,724,916.12x = 21,701,277.37 × 9,447,363.58 - Step 4: Simplify right side
15,724,916.12x = 205,019,857,464,816.19 - Step 5: Solve for x
x = 205,019,857,464,816.19/15,724,916.12 - Step 6: Final answer
x = 13,037,898.32
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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.