Finding the Fourth Proportional to 122,486,130.40, 183,729,195.60 and 118,329,080.80
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Solution
The fourth proportional to 122,486,130.40, 183,729,195.60 and 118,329,080.80 is: 177,493,621.20
Step by Step Solution
- Step 1: Write the proportion equation
122,486,130.40 : 183,729,195.60 = 118,329,080.80 : x - Step 2: Convert to fraction form
122,486,130.40/183,729,195.60 = 118,329,080.80/x - Step 3: Cross multiply
122,486,130.40x = 183,729,195.60 × 118,329,080.80 - Step 4: Simplify right side
122,486,130.40x = 21,740,506,831,471,404 - Step 5: Solve for x
x = 21,740,506,831,471,404/122,486,130.40 - Step 6: Final answer
x = 177,493,621.20
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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.