Finding the Fourth Proportional to 13,273,562.75, 18,317,870.96 and 7,472,564.08
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Solution
The fourth proportional to 13,273,562.75, 18,317,870.96 and 7,472,564.08 is: 10,312,337.92
Step by Step Solution
- Step 1: Write the proportion equation
13,273,562.75 : 18,317,870.96 = 7,472,564.08 : x - Step 2: Convert to fraction form
13,273,562.75/18,317,870.96 = 7,472,564.08/x - Step 3: Cross multiply
13,273,562.75x = 18,317,870.96 × 7,472,564.08 - Step 4: Simplify right side
13,273,562.75x = 136,881,464,474,613.59 - Step 5: Solve for x
x = 136,881,464,474,613.59/13,273,562.75 - Step 6: Final answer
x = 10,312,337.92
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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.