Finding the Fourth Proportional to 56,981,484.59, 85,480,739.64 and 18,121,204.31
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Solution
The fourth proportional to 56,981,484.59, 85,480,739.64 and 18,121,204.31 is: 27,184,513.68
Step by Step Solution
- Step 1: Write the proportion equation
56,981,484.59 : 85,480,739.64 = 18,121,204.31 : x - Step 2: Convert to fraction form
56,981,484.59/85,480,739.64 = 18,121,204.31/x - Step 3: Cross multiply
56,981,484.59x = 85,480,739.64 × 18,121,204.31 - Step 4: Simplify right side
56,981,484.59x = 1,549,013,947,158,952.25 - Step 5: Solve for x
x = 1,549,013,947,158,952.25/56,981,484.59 - Step 6: Final answer
x = 27,184,513.68
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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.