Finding the Fourth Proportional to 122,486,129.40, 183,729,194.10 and 118,329,079.80
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Solution
The fourth proportional to 122,486,129.40, 183,729,194.10 and 118,329,079.80 is: 177,493,619.70
Step by Step Solution
- Step 1: Write the proportion equation
122,486,129.40 : 183,729,194.10 = 118,329,079.80 : x - Step 2: Convert to fraction form
122,486,129.40/183,729,194.10 = 118,329,079.80/x - Step 3: Cross multiply
122,486,129.40x = 183,729,194.10 × 118,329,079.80 - Step 4: Simplify right side
122,486,129.40x = 21,740,506,470,248,588 - Step 5: Solve for x
x = 21,740,506,470,248,588/122,486,129.40 - Step 6: Final answer
x = 177,493,619.70
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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.