Finding the Fourth Proportional to 5,481,341,959.19, 7,564,056,188.84 and 3,102,428,820.60
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Solution
The fourth proportional to 5,481,341,959.19, 7,564,056,188.84 and 3,102,428,820.60 is: 4,281,240,998.21
Step by Step Solution
- Step 1: Write the proportion equation
5,481,341,959.19 : 7,564,056,188.84 = 3,102,428,820.60 : x - Step 2: Convert to fraction form
5,481,341,959.19/7,564,056,188.84 = 3,102,428,820.60/x - Step 3: Cross multiply
5,481,341,959.19x = 7,564,056,188.84 × 3,102,428,820.60 - Step 4: Simplify right side
5,481,341,959.19x = 23,466,945,920,921,640,960 - Step 5: Solve for x
x = 23,466,945,920,921,640,960/5,481,341,959.19 - Step 6: Final answer
x = 4,281,240,998.21
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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.