Finding the Fourth Proportional to 2,112,475,062.70, 3,168,696,847.65 and 638,612,022.70
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Solution
The fourth proportional to 2,112,475,062.70, 3,168,696,847.65 and 638,612,022.70 is: 957,913,273.83
Step by Step Solution
- Step 1: Write the proportion equation
2,112,475,062.70 : 3,168,696,847.65 = 638,612,022.70 : x - Step 2: Convert to fraction form
2,112,475,062.70/3,168,696,847.65 = 638,612,022.70/x - Step 3: Cross multiply
2,112,475,062.70x = 3,168,696,847.65 × 638,612,022.70 - Step 4: Simplify right side
2,112,475,062.70x = 2,023,567,903,200,880,384 - Step 5: Solve for x
x = 2,023,567,903,200,880,384/2,112,475,062.70 - Step 6: Final answer
x = 957,913,273.83
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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.