Finding the Fourth Proportional to 83,080,665.70, 124,620,998.55 and 47,248,857.70
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Solution
The fourth proportional to 83,080,665.70, 124,620,998.55 and 47,248,857.70 is: 70,873,286.55
Step by Step Solution
- Step 1: Write the proportion equation
83,080,665.70 : 124,620,998.55 = 47,248,857.70 : x - Step 2: Convert to fraction form
83,080,665.70/124,620,998.55 = 47,248,857.70/x - Step 3: Cross multiply
83,080,665.70x = 124,620,998.55 × 47,248,857.70 - Step 4: Simplify right side
83,080,665.70x = 5,888,199,826,920,857 - Step 5: Solve for x
x = 5,888,199,826,920,857/83,080,665.70 - Step 6: Final answer
x = 70,873,286.55
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Similar ratio
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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.