Finding the Fourth Proportional to 137,416,753.58, 189,726,435.68 and 105,570,203.13
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Solution
The fourth proportional to 137,416,753.58, 189,726,435.68 and 105,570,203.13 is: 145,757,033.49
Step by Step Solution
- Step 1: Write the proportion equation
137,416,753.58 : 189,726,435.68 = 105,570,203.13 : x - Step 2: Convert to fraction form
137,416,753.58/189,726,435.68 = 105,570,203.13/x - Step 3: Cross multiply
137,416,753.58x = 189,726,435.68 × 105,570,203.13 - Step 4: Simplify right side
137,416,753.58x = 20,029,458,353,340,628 - Step 5: Solve for x
x = 20,029,458,353,340,628/137,416,753.58 - Step 6: Final answer
x = 145,757,033.49
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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.