Finding the Fourth Proportional to 280,088,604.05, 386,162,895.24 and 229,667,031.99
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Solution
The fourth proportional to 280,088,604.05, 386,162,895.24 and 229,667,031.99 is: 316,645,821.12
Step by Step Solution
- Step 1: Write the proportion equation
280,088,604.05 : 386,162,895.24 = 229,667,031.99 : x - Step 2: Convert to fraction form
280,088,604.05/386,162,895.24 = 229,667,031.99/x - Step 3: Cross multiply
280,088,604.05x = 386,162,895.24 × 229,667,031.99 - Step 4: Simplify right side
280,088,604.05x = 88,688,886,014,436,112 - Step 5: Solve for x
x = 88,688,886,014,436,112/280,088,604.05 - Step 6: Final answer
x = 316,645,821.12
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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.