Finding the Fourth Proportional to 81,514,879.68, 122,272,297.20 and 55,878,165.84
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Solution
The fourth proportional to 81,514,879.68, 122,272,297.20 and 55,878,165.84 is: 83,817,233.46
Step by Step Solution
- Step 1: Write the proportion equation
81,514,879.68 : 122,272,297.20 = 55,878,165.84 : x - Step 2: Convert to fraction form
81,514,879.68/122,272,297.20 = 55,878,165.84/x - Step 3: Cross multiply
81,514,879.68x = 122,272,297.20 × 55,878,165.84 - Step 4: Simplify right side
81,514,879.68x = 6,832,351,700,579,368 - Step 5: Solve for x
x = 6,832,351,700,579,368/81,514,879.68 - Step 6: Final answer
x = 83,817,233.46
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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.