Finding the Fourth Proportional to 147,531,154.36, 203,588,940.78 and 81,450,451.84
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Solution
The fourth proportional to 147,531,154.36, 203,588,940.78 and 81,450,451.84 is: 112,399,386.34
Step by Step Solution
- Step 1: Write the proportion equation
147,531,154.36 : 203,588,940.78 = 81,450,451.84 : x - Step 2: Convert to fraction form
147,531,154.36/203,588,940.78 = 81,450,451.84/x - Step 3: Cross multiply
147,531,154.36x = 203,588,940.78 × 81,450,451.84 - Step 4: Simplify right side
147,531,154.36x = 16,582,411,216,158,002 - Step 5: Solve for x
x = 16,582,411,216,158,002/147,531,154.36 - Step 6: Final answer
x = 112,399,386.34
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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.