Finding the Fourth Proportional to 128,006,963.52, 176,650,074.99 and 69,269,622.54
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Solution
The fourth proportional to 128,006,963.52, 176,650,074.99 and 69,269,622.54 is: 95,592,330.91
Step by Step Solution
- Step 1: Write the proportion equation
128,006,963.52 : 176,650,074.99 = 69,269,622.54 : x - Step 2: Convert to fraction form
128,006,963.52/176,650,074.99 = 69,269,622.54/x - Step 3: Cross multiply
128,006,963.52x = 176,650,074.99 × 69,269,622.54 - Step 4: Simplify right side
128,006,963.52x = 12,236,484,016,219,996 - Step 5: Solve for x
x = 12,236,484,016,219,996/128,006,963.52 - Step 6: Final answer
x = 95,592,330.91
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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.