Finding the Fourth Proportional to 2,356,128,840.10, 3,534,193,260.15 and 805,171,425.70
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Solution
The fourth proportional to 2,356,128,840.10, 3,534,193,260.15 and 805,171,425.70 is: 1,207,757,138.55
Step by Step Solution
- Step 1: Write the proportion equation
2,356,128,840.10 : 3,534,193,260.15 = 805,171,425.70 : x - Step 2: Convert to fraction form
2,356,128,840.10/3,534,193,260.15 = 805,171,425.70/x - Step 3: Cross multiply
2,356,128,840.10x = 3,534,193,260.15 × 805,171,425.70 - Step 4: Simplify right side
2,356,128,840.10x = 2,845,631,425,974,306,816 - Step 5: Solve for x
x = 2,845,631,425,974,306,816/2,356,128,840.10 - Step 6: Final answer
x = 1,207,757,138.55
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1.5x scale
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.