Finding the Fourth Proportional to 128,464,555,285.05, 177,270,692,841.66 and 74,274,580,725.65
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Solution
The fourth proportional to 128,464,555,285.05, 177,270,692,841.66 and 74,274,580,725.65 is: 102,492,912,200.91
Step by Step Solution
- Step 1: Write the proportion equation
128,464,555,285.05 : 177,270,692,841.66 = 74,274,580,725.65 : x - Step 2: Convert to fraction form
128,464,555,285.05/177,270,692,841.66 = 74,274,580,725.65/x - Step 3: Cross multiply
128,464,555,285.05x = 177,270,692,841.66 × 74,274,580,725.65 - Step 4: Simplify right side
128,464,555,285.05x = 13,166,706,385,759,781,257,216 - Step 5: Solve for x
x = 13,166,706,385,759,781,257,216/128,464,555,285.05 - Step 6: Final answer
x = 102,492,912,200.91
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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.