Finding the Fourth Proportional to 128,765,880,609.84, 193,148,775,454.32 and 34,436,376,740.88
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Solution
The fourth proportional to 128,765,880,609.84, 193,148,775,454.32 and 34,436,376,740.88 is: 51,654,552,953.65
Step by Step Solution
- Step 1: Write the proportion equation
128,765,880,609.84 : 193,148,775,454.32 = 34,436,376,740.88 : x - Step 2: Convert to fraction form
128,765,880,609.84/193,148,775,454.32 = 34,436,376,740.88/x - Step 3: Cross multiply
128,765,880,609.84x = 193,148,775,454.32 × 34,436,376,740.88 - Step 4: Simplify right side
128,765,880,609.84x = 6,651,343,998,584,599,085,056 - Step 5: Solve for x
x = 6,651,343,998,584,599,085,056/128,765,880,609.84 - Step 6: Final answer
x = 51,654,552,953.65
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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.