Finding the Fourth Proportional to 13,316,518.09, 18,377,316.48 and 7,515,502.48
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Solution
The fourth proportional to 13,316,518.09, 18,377,316.48 and 7,515,502.48 is: 10,371,687.75
Step by Step Solution
- Step 1: Write the proportion equation
13,316,518.09 : 18,377,316.48 = 7,515,502.48 : x - Step 2: Convert to fraction form
13,316,518.09/18,377,316.48 = 7,515,502.48/x - Step 3: Cross multiply
13,316,518.09x = 18,377,316.48 × 7,515,502.48 - Step 4: Simplify right side
13,316,518.09x = 138,114,767,581,184.88 - Step 5: Solve for x
x = 138,114,767,581,184.88/13,316,518.09 - Step 6: Final answer
x = 10,371,687.75
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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.