Finding the Fourth Proportional to 7,859,069,414.25, 10,845,459,639.41 and 4,290,776,203.65
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Solution
The fourth proportional to 7,859,069,414.25, 10,845,459,639.41 and 4,290,776,203.65 is: 5,921,240,503.88
Step by Step Solution
- Step 1: Write the proportion equation
7,859,069,414.25 : 10,845,459,639.41 = 4,290,776,203.65 : x - Step 2: Convert to fraction form
7,859,069,414.25/10,845,459,639.41 = 4,290,776,203.65/x - Step 3: Cross multiply
7,859,069,414.25x = 10,845,459,639.41 × 4,290,776,203.65 - Step 4: Simplify right side
7,859,069,414.25x = 46,535,440,138,426,941,440 - Step 5: Solve for x
x = 46,535,440,138,426,941,440/7,859,069,414.25 - Step 6: Final answer
x = 5,921,240,503.88
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Double scale
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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.