Finding the Fourth Proportional to 19,890,661.35, 29,836,000.29 and 8,948,069.62
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Solution
The fourth proportional to 19,890,661.35, 29,836,000.29 and 8,948,069.62 is: 13,422,108.15
Step by Step Solution
- Step 1: Write the proportion equation
19,890,661.35 : 29,836,000.29 = 8,948,069.62 : x - Step 2: Convert to fraction form
19,890,661.35/29,836,000.29 = 8,948,069.62/x - Step 3: Cross multiply
19,890,661.35x = 29,836,000.29 × 8,948,069.62 - Step 4: Simplify right side
19,890,661.35x = 266,974,607,777,260.16 - Step 5: Solve for x
x = 266,974,607,777,260.16/19,890,661.35 - Step 6: Final answer
x = 13,422,108.15
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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.