Finding the Fourth Proportional to 137,240,773.87, 189,395,558.43 and 74,519,515.41
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Solution
The fourth proportional to 137,240,773.87, 189,395,558.43 and 74,519,515.41 is: 102,838,717.95
Step by Step Solution
- Step 1: Write the proportion equation
137,240,773.87 : 189,395,558.43 = 74,519,515.41 : x - Step 2: Convert to fraction form
137,240,773.87/189,395,558.43 = 74,519,515.41/x - Step 3: Cross multiply
137,240,773.87x = 189,395,558.43 × 74,519,515.41 - Step 4: Simplify right side
137,240,773.87x = 14,113,665,235,009,940 - Step 5: Solve for x
x = 14,113,665,235,009,940/137,240,773.87 - Step 6: Final answer
x = 102,838,717.95
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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.