Finding the Fourth Proportional to 168,490,829.40, 252,736,244.10 and 137,879,827.80
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Solution
The fourth proportional to 168,490,829.40, 252,736,244.10 and 137,879,827.80 is: 206,819,741.70
Step by Step Solution
- Step 1: Write the proportion equation
168,490,829.40 : 252,736,244.10 = 137,879,827.80 : x - Step 2: Convert to fraction form
168,490,829.40/252,736,244.10 = 137,879,827.80/x - Step 3: Cross multiply
168,490,829.40x = 252,736,244.10 × 137,879,827.80 - Step 4: Simplify right side
168,490,829.40x = 34,847,229,815,326,768 - Step 5: Solve for x
x = 34,847,229,815,326,768/168,490,829.40 - Step 6: Final answer
x = 206,819,741.70
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1.5x scale
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.