Finding the Fourth Proportional to 228,583,219.68, 315,471,011.63 and 128,138,785.91
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Solution
The fourth proportional to 228,583,219.68, 315,471,011.63 and 128,138,785.91 is: 176,846,194.02
Step by Step Solution
- Step 1: Write the proportion equation
228,583,219.68 : 315,471,011.63 = 128,138,785.91 : x - Step 2: Convert to fraction form
228,583,219.68/315,471,011.63 = 128,138,785.91/x - Step 3: Cross multiply
228,583,219.68x = 315,471,011.63 × 128,138,785.91 - Step 4: Simplify right side
228,583,219.68x = 40,424,072,417,849,640 - Step 5: Solve for x
x = 40,424,072,417,849,640/228,583,219.68 - Step 6: Final answer
x = 176,846,194.02
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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.