Finding the Fourth Proportional to 100,926,288.71, 139,278,334.49 and 54,516,543.05
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Solution
The fourth proportional to 100,926,288.71, 139,278,334.49 and 54,516,543.05 is: 75,232,859.70
Step by Step Solution
- Step 1: Write the proportion equation
100,926,288.71 : 139,278,334.49 = 54,516,543.05 : x - Step 2: Convert to fraction form
100,926,288.71/139,278,334.49 = 54,516,543.05/x - Step 3: Cross multiply
100,926,288.71x = 139,278,334.49 × 54,516,543.05 - Step 4: Simplify right side
100,926,288.71x = 7,592,973,318,156,385 - Step 5: Solve for x
x = 7,592,973,318,156,385/100,926,288.71 - Step 6: Final answer
x = 75,232,859.70
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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.