Finding the Fourth Proportional to 157,624,391.69, 217,535,106.07 and 88,023,218.75
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Solution
The fourth proportional to 157,624,391.69, 217,535,106.07 and 88,023,218.75 is: 121,479,550.36
Step by Step Solution
- Step 1: Write the proportion equation
157,624,391.69 : 217,535,106.07 = 88,023,218.75 : x - Step 2: Convert to fraction form
157,624,391.69/217,535,106.07 = 88,023,218.75/x - Step 3: Cross multiply
157,624,391.69x = 217,535,106.07 × 88,023,218.75 - Step 4: Simplify right side
157,624,391.69x = 19,148,140,228,219,344 - Step 5: Solve for x
x = 19,148,140,228,219,344/157,624,391.69 - Step 6: Final answer
x = 121,479,550.36
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1.5x scale
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.