Finding the Fourth Proportional to 157,807,679.11, 217,781,322.75 and 88,193,057.94
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Solution
The fourth proportional to 157,807,679.11, 217,781,322.75 and 88,193,057.94 is: 121,710,178.64
Step by Step Solution
- Step 1: Write the proportion equation
157,807,679.11 : 217,781,322.75 = 88,193,057.94 : x - Step 2: Convert to fraction form
157,807,679.11/217,781,322.75 = 88,193,057.94/x - Step 3: Cross multiply
157,807,679.11x = 217,781,322.75 × 88,193,057.94 - Step 4: Simplify right side
157,807,679.11x = 19,206,800,815,099,624 - Step 5: Solve for x
x = 19,206,800,815,099,624/157,807,679.11 - Step 6: Final answer
x = 121,710,178.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.