Finding the Fourth Proportional to 122,478,136.20, 183,717,204.30 and 105,849,937.80
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Solution
The fourth proportional to 122,478,136.20, 183,717,204.30 and 105,849,937.80 is: 158,774,906.70
Step by Step Solution
- Step 1: Write the proportion equation
122,478,136.20 : 183,717,204.30 = 105,849,937.80 : x - Step 2: Convert to fraction form
122,478,136.20/183,717,204.30 = 105,849,937.80/x - Step 3: Cross multiply
122,478,136.20x = 183,717,204.30 × 105,849,937.80 - Step 4: Simplify right side
122,478,136.20x = 19,446,454,647,944,892 - Step 5: Solve for x
x = 19,446,454,647,944,892/122,478,136.20 - Step 6: Final answer
x = 158,774,906.70
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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.