Finding the Fourth Proportional to 128,465,592.01, 177,282,696.18 and 69,728,269.12
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Solution
The fourth proportional to 128,465,592.01, 177,282,696.18 and 69,728,269.12 is: 96,225,108.66
Step by Step Solution
- Step 1: Write the proportion equation
128,465,592.01 : 177,282,696.18 = 69,728,269.12 : x - Step 2: Convert to fraction form
128,465,592.01/177,282,696.18 = 69,728,269.12/x - Step 3: Cross multiply
128,465,592.01x = 177,282,696.18 × 69,728,269.12 - Step 4: Simplify right side
128,465,592.01x = 12,361,615,549,376,512 - Step 5: Solve for x
x = 12,361,615,549,376,512/128,465,592.01 - Step 6: Final answer
x = 96,225,108.66
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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.