Finding the Fourth Proportional to 27,688,577.46, 38,211,007.70 and 15,299,473.21
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Solution
The fourth proportional to 27,688,577.46, 38,211,007.70 and 15,299,473.21 is: 21,113,698.94
Step by Step Solution
- Step 1: Write the proportion equation
27,688,577.46 : 38,211,007.70 = 15,299,473.21 : x - Step 2: Convert to fraction form
27,688,577.46/38,211,007.70 = 15,299,473.21/x - Step 3: Cross multiply
27,688,577.46x = 38,211,007.70 × 15,299,473.21 - Step 4: Simplify right side
27,688,577.46x = 584,608,288,518,601.75 - Step 5: Solve for x
x = 584,608,288,518,601.75/27,688,577.46 - Step 6: Final answer
x = 21,113,698.94
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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.