Finding the Fourth Proportional to 5,155,616,625.92, 7,735,843,585.92 and 2,570,889,155.84
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Solution
The fourth proportional to 5,155,616,625.92, 7,735,843,585.92 and 2,570,889,155.84 is: 3,857,539,811.31
Step by Step Solution
- Step 1: Write the proportion equation
5,155,616,625.92 : 7,735,843,585.92 = 2,570,889,155.84 : x - Step 2: Convert to fraction form
5,155,616,625.92/7,735,843,585.92 = 2,570,889,155.84/x - Step 3: Cross multiply
5,155,616,625.92x = 7,735,843,585.92 × 2,570,889,155.84 - Step 4: Simplify right side
5,155,616,625.92x = 19,887,996,386,316,148,736 - Step 5: Solve for x
x = 19,887,996,386,316,148,736/5,155,616,625.92 - Step 6: Final answer
x = 3,857,539,811.31
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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.