Finding the Fourth Proportional to 147,822,903.63, 203,996,927.52 and 81,747,849.15
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Solution
The fourth proportional to 147,822,903.63, 203,996,927.52 and 81,747,849.15 is: 112,812,762.09
Step by Step Solution
- Step 1: Write the proportion equation
147,822,903.63 : 203,996,927.52 = 81,747,849.15 : x - Step 2: Convert to fraction form
147,822,903.63/203,996,927.52 = 81,747,849.15/x - Step 3: Cross multiply
147,822,903.63x = 203,996,927.52 × 81,747,849.15 - Step 4: Simplify right side
147,822,903.63x = 16,676,310,057,968,446 - Step 5: Solve for x
x = 16,676,310,057,968,446/147,822,903.63 - Step 6: Final answer
x = 112,812,762.09
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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.