Finding the Fourth Proportional to 178,678,385.79, 246,582,153.11 and 99,296,792.91
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Solution
The fourth proportional to 178,678,385.79, 246,582,153.11 and 99,296,792.91 is: 137,032,897.88
Step by Step Solution
- Step 1: Write the proportion equation
178,678,385.79 : 246,582,153.11 = 99,296,792.91 : x - Step 2: Convert to fraction form
178,678,385.79/246,582,153.11 = 99,296,792.91/x - Step 3: Cross multiply
178,678,385.79x = 246,582,153.11 × 99,296,792.91 - Step 4: Simplify right side
178,678,385.79x = 24,484,816,992,665,584 - Step 5: Solve for x
x = 24,484,816,992,665,584/178,678,385.79 - Step 6: Final answer
x = 137,032,897.88
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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.