Finding the Fourth Proportional to 13,787,670.84, 20,690,952.66 and 4,812,222.84
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Solution
The fourth proportional to 13,787,670.84, 20,690,952.66 and 4,812,222.84 is: 7,221,631.28
Step by Step Solution
- Step 1: Write the proportion equation
13,787,670.84 : 20,690,952.66 = 4,812,222.84 : x - Step 2: Convert to fraction form
13,787,670.84/20,690,952.66 = 4,812,222.84/x - Step 3: Cross multiply
13,787,670.84x = 20,690,952.66 × 4,812,222.84 - Step 4: Simplify right side
13,787,670.84x = 99,569,474,971,810.75 - Step 5: Solve for x
x = 99,569,474,971,810.75/13,787,670.84 - Step 6: Final answer
x = 7,221,631.28
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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.