Finding the Fourth Proportional to 137,228,854,379.99, 189,380,417,528.07 and 76,263,790,724.63
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Solution
The fourth proportional to 137,228,854,379.99, 189,380,417,528.07 and 76,263,790,724.63 is: 105,246,586,768.92
Step by Step Solution
- Step 1: Write the proportion equation
137,228,854,379.99 : 189,380,417,528.07 = 76,263,790,724.63 : x - Step 2: Convert to fraction form
137,228,854,379.99/189,380,417,528.07 = 76,263,790,724.63/x - Step 3: Cross multiply
137,228,854,379.99x = 189,380,417,528.07 × 76,263,790,724.63 - Step 4: Simplify right side
137,228,854,379.99x = 14,442,868,529,702,834,798,592 - Step 5: Solve for x
x = 14,442,868,529,702,834,798,592/137,228,854,379.99 - Step 6: Final answer
x = 105,246,586,768.92
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1.5x scale
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.