Finding the Fourth Proportional to 134,868,037.99, 186,117,890.16 and 72,988,376.56
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Solution
The fourth proportional to 134,868,037.99, 186,117,890.16 and 72,988,376.56 is: 100,723,958.42
Step by Step Solution
- Step 1: Write the proportion equation
134,868,037.99 : 186,117,890.16 = 72,988,376.56 : x - Step 2: Convert to fraction form
134,868,037.99/186,117,890.16 = 72,988,376.56/x - Step 3: Cross multiply
134,868,037.99x = 186,117,890.16 × 72,988,376.56 - Step 4: Simplify right side
134,868,037.99x = 13,584,442,650,482,608 - Step 5: Solve for x
x = 13,584,442,650,482,608/134,868,037.99 - Step 6: Final answer
x = 100,723,958.42
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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.