Finding the Fourth Proportional to 13,377,613.64, 18,461,159.70 and 7,266,144.20
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Solution
The fourth proportional to 13,377,613.64, 18,461,159.70 and 7,266,144.20 is: 10,027,307.72
Step by Step Solution
- Step 1: Write the proportion equation
13,377,613.64 : 18,461,159.70 = 7,266,144.20 : x - Step 2: Convert to fraction form
13,377,613.64/18,461,159.70 = 7,266,144.20/x - Step 3: Cross multiply
13,377,613.64x = 18,461,159.70 × 7,266,144.20 - Step 4: Simplify right side
13,377,613.64x = 134,141,448,479,428.73 - Step 5: Solve for x
x = 134,141,448,479,428.73/13,377,613.64 - Step 6: Final answer
x = 10,027,307.72
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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.