Finding the Fourth Proportional to 280,509,238.64, 420,763,859.64 and 76,037,313.08
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Solution
The fourth proportional to 280,509,238.64, 420,763,859.64 and 76,037,313.08 is: 114,055,970.08
Step by Step Solution
- Step 1: Write the proportion equation
280,509,238.64 : 420,763,859.64 = 76,037,313.08 : x - Step 2: Convert to fraction form
280,509,238.64/420,763,859.64 = 76,037,313.08/x - Step 3: Cross multiply
280,509,238.64x = 420,763,859.64 × 76,037,313.08 - Step 4: Simplify right side
280,509,238.64x = 31,993,753,328,195,856 - Step 5: Solve for x
x = 31,993,753,328,195,856/280,509,238.64 - Step 6: Final answer
x = 114,055,970.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.