Finding the Fourth Proportional to 90,482,942.40, 135,718,192.80 and 29,071,204.80
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Solution
The fourth proportional to 90,482,942.40, 135,718,192.80 and 29,071,204.80 is: 43,604,808.52
Step by Step Solution
- Step 1: Write the proportion equation
90,482,942.40 : 135,718,192.80 = 29,071,204.80 : x - Step 2: Convert to fraction form
90,482,942.40/135,718,192.80 = 29,071,204.80/x - Step 3: Cross multiply
90,482,942.40x = 135,718,192.80 × 29,071,204.80 - Step 4: Simplify right side
90,482,942.40x = 3,945,491,377,974,686 - Step 5: Solve for x
x = 3,945,491,377,974,686/90,482,942.40 - Step 6: Final answer
x = 43,604,808.52
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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.