Finding the Fourth Proportional to 122,490,147.40, 183,735,221.10 and 121,639,841.80
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Solution
The fourth proportional to 122,490,147.40, 183,735,221.10 and 121,639,841.80 is: 182,459,762.70
Step by Step Solution
- Step 1: Write the proportion equation
122,490,147.40 : 183,735,221.10 = 121,639,841.80 : x - Step 2: Convert to fraction form
122,490,147.40/183,735,221.10 = 121,639,841.80/x - Step 3: Cross multiply
122,490,147.40x = 183,735,221.10 × 121,639,841.80 - Step 4: Simplify right side
122,490,147.40x = 22,349,523,227,692,020 - Step 5: Solve for x
x = 22,349,523,227,692,020/122,490,147.40 - Step 6: Final answer
x = 182,459,762.70
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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.