Finding the Fourth Proportional to 1,234,748,889.76, 1,701,598,620.18 and 1,212,053,701.72
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Solution
The fourth proportional to 1,234,748,889.76, 1,701,598,620.18 and 1,212,053,701.72 is: 1,670,322,543.75
Step by Step Solution
- Step 1: Write the proportion equation
1,234,748,889.76 : 1,701,598,620.18 = 1,212,053,701.72 : x - Step 2: Convert to fraction form
1,234,748,889.76/1,701,598,620.18 = 1,212,053,701.72/x - Step 3: Cross multiply
1,234,748,889.76x = 1,701,598,620.18 × 1,212,053,701.72 - Step 4: Simplify right side
1,234,748,889.76x = 2,062,428,906,430,813,440 - Step 5: Solve for x
x = 2,062,428,906,430,813,440/1,234,748,889.76 - Step 6: Final answer
x = 1,670,322,543.75
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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.