Finding the Fourth Proportional to 245,446,252.20, 338,723,015.10 and 133,944,277.80
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Solution
The fourth proportional to 245,446,252.20, 338,723,015.10 and 133,944,277.80 is: 184,847,025.47
Step by Step Solution
- Step 1: Write the proportion equation
245,446,252.20 : 338,723,015.10 = 133,944,277.80 : x - Step 2: Convert to fraction form
245,446,252.20/338,723,015.10 = 133,944,277.80/x - Step 3: Cross multiply
245,446,252.20x = 338,723,015.10 × 133,944,277.80 - Step 4: Simplify right side
245,446,252.20x = 45,370,009,631,808,000 - Step 5: Solve for x
x = 45,370,009,631,808,000/245,446,252.20 - Step 6: Final answer
x = 184,847,025.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.