Finding the Fourth Proportional to 115,541,370.79, 159,463,441.77 and 71,502,552.74
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Solution
The fourth proportional to 115,541,370.79, 159,463,441.77 and 71,502,552.74 is: 98,683,641.00
Step by Step Solution
- Step 1: Write the proportion equation
115,541,370.79 : 159,463,441.77 = 71,502,552.74 : x - Step 2: Convert to fraction form
115,541,370.79/159,463,441.77 = 71,502,552.74/x - Step 3: Cross multiply
115,541,370.79x = 159,463,441.77 × 71,502,552.74 - Step 4: Simplify right side
115,541,370.79x = 11,402,043,155,391,870 - Step 5: Solve for x
x = 11,402,043,155,391,870/115,541,370.79 - Step 6: Final answer
x = 98,683,641.00
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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.