Finding the Fourth Proportional to 13,862,857.72, 19,129,459.76 and 7,667,771.08
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Solution
The fourth proportional to 13,862,857.72, 19,129,459.76 and 7,667,771.08 is: 10,580,813.95
Step by Step Solution
- Step 1: Write the proportion equation
13,862,857.72 : 19,129,459.76 = 7,667,771.08 : x - Step 2: Convert to fraction form
13,862,857.72/19,129,459.76 = 7,667,771.08/x - Step 3: Cross multiply
13,862,857.72x = 19,129,459.76 × 7,667,771.08 - Step 4: Simplify right side
13,862,857.72x = 146,680,318,323,751.75 - Step 5: Solve for x
x = 146,680,318,323,751.75/13,862,857.72 - Step 6: Final answer
x = 10,580,813.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.