Finding the Fourth Proportional to 79,967,669.97, 119,955,991.95 and 22,455,457.05
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Solution
The fourth proportional to 79,967,669.97, 119,955,991.95 and 22,455,457.05 is: 33,684,445.55
Step by Step Solution
- Step 1: Write the proportion equation
79,967,669.97 : 119,955,991.95 = 22,455,457.05 : x - Step 2: Convert to fraction form
79,967,669.97/119,955,991.95 = 22,455,457.05/x - Step 3: Cross multiply
79,967,669.97x = 119,955,991.95 × 22,455,457.05 - Step 4: Simplify right side
79,967,669.97x = 2,693,666,625,123,371 - Step 5: Solve for x
x = 2,693,666,625,123,371/79,967,669.97 - Step 6: Final answer
x = 33,684,445.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.