Finding the Fourth Proportional to 859,627,762.70, 1,289,441,644.05 and 368,257,414.10
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Solution
The fourth proportional to 859,627,762.70, 1,289,441,644.05 and 368,257,414.10 is: 552,386,121.15
Step by Step Solution
- Step 1: Write the proportion equation
859,627,762.70 : 1,289,441,644.05 = 368,257,414.10 : x - Step 2: Convert to fraction form
859,627,762.70/1,289,441,644.05 = 368,257,414.10/x - Step 3: Cross multiply
859,627,762.70x = 1,289,441,644.05 × 368,257,414.10 - Step 4: Simplify right side
859,627,762.70x = 474,846,445,470,705,664 - Step 5: Solve for x
x = 474,846,445,470,705,664/859,627,762.70 - Step 6: Final answer
x = 552,386,121.15
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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.