Finding the Fourth Proportional to 56,128,467.80, 84,192,701.70 and 13,578,195.80
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Solution
The fourth proportional to 56,128,467.80, 84,192,701.70 and 13,578,195.80 is: 20,367,293.70
Step by Step Solution
- Step 1: Write the proportion equation
56,128,467.80 : 84,192,701.70 = 13,578,195.80 : x - Step 2: Convert to fraction form
56,128,467.80/84,192,701.70 = 13,578,195.80/x - Step 3: Cross multiply
56,128,467.80x = 84,192,701.70 × 13,578,195.80 - Step 4: Simplify right side
56,128,467.80x = 1,143,184,988,613,593 - Step 5: Solve for x
x = 1,143,184,988,613,593/56,128,467.80 - Step 6: Final answer
x = 20,367,293.70
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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.