Finding the Fourth Proportional to 107,838,140.10, 161,757,210.15 and 31,163,669.70
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Solution
The fourth proportional to 107,838,140.10, 161,757,210.15 and 31,163,669.70 is: 46,745,504.55
Step by Step Solution
- Step 1: Write the proportion equation
107,838,140.10 : 161,757,210.15 = 31,163,669.70 : x - Step 2: Convert to fraction form
107,838,140.10/161,757,210.15 = 31,163,669.70/x - Step 3: Cross multiply
107,838,140.10x = 161,757,210.15 × 31,163,669.70 - Step 4: Simplify right side
107,838,140.10x = 5,040,948,268,708,088 - Step 5: Solve for x
x = 5,040,948,268,708,088/107,838,140.10 - Step 6: Final answer
x = 46,745,504.55
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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.