Finding the Fourth Proportional to 157,370,303.96, 217,209,947.18 and 107,217,516.95
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Solution
The fourth proportional to 157,370,303.96, 217,209,947.18 and 107,217,516.95 is: 147,986,695.12
Step by Step Solution
- Step 1: Write the proportion equation
157,370,303.96 : 217,209,947.18 = 107,217,516.95 : x - Step 2: Convert to fraction form
157,370,303.96/217,209,947.18 = 107,217,516.95/x - Step 3: Cross multiply
157,370,303.96x = 217,209,947.18 × 107,217,516.95 - Step 4: Simplify right side
157,370,303.96x = 23,288,711,191,858,116 - Step 5: Solve for x
x = 23,288,711,191,858,116/157,370,303.96 - Step 6: Final answer
x = 147,986,695.12
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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.