Finding the Fourth Proportional to 490,197,175.60, 734,445,457.80 and 317,585,138.80
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Solution
The fourth proportional to 490,197,175.60, 734,445,457.80 and 317,585,138.80 is: 475,826,818.81
Step by Step Solution
- Step 1: Write the proportion equation
490,197,175.60 : 734,445,457.80 = 317,585,138.80 : x - Step 2: Convert to fraction form
490,197,175.60/734,445,457.80 = 317,585,138.80/x - Step 3: Cross multiply
490,197,175.60x = 734,445,457.80 × 317,585,138.80 - Step 4: Simplify right side
490,197,175.60x = 233,248,962,656,442,528 - Step 5: Solve for x
x = 233,248,962,656,442,528/490,197,175.60 - Step 6: Final answer
x = 475,826,818.81
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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.