Finding the Fourth Proportional to 88,085,711.80, 132,128,567.70 and 39,586,799.80
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Solution
The fourth proportional to 88,085,711.80, 132,128,567.70 and 39,586,799.80 is: 59,380,199.70
Step by Step Solution
- Step 1: Write the proportion equation
88,085,711.80 : 132,128,567.70 = 39,586,799.80 : x - Step 2: Convert to fraction form
88,085,711.80/132,128,567.70 = 39,586,799.80/x - Step 3: Cross multiply
88,085,711.80x = 132,128,567.70 × 39,586,799.80 - Step 4: Simplify right side
88,085,711.80x = 5,230,547,157,400,646 - Step 5: Solve for x
x = 5,230,547,157,400,646/88,085,711.80 - Step 6: Final answer
x = 59,380,199.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.