Finding the Fourth Proportional to 828,927,902.68, 1,144,020,814.74 and 471,782,514.08
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Solution
The fourth proportional to 828,927,902.68, 1,144,020,814.74 and 471,782,514.08 is: 651,116,960.10
Step by Step Solution
- Step 1: Write the proportion equation
828,927,902.68 : 1,144,020,814.74 = 471,782,514.08 : x - Step 2: Convert to fraction form
828,927,902.68/1,144,020,814.74 = 471,782,514.08/x - Step 3: Cross multiply
828,927,902.68x = 1,144,020,814.74 × 471,782,514.08 - Step 4: Simplify right side
828,927,902.68x = 539,729,016,137,887,104 - Step 5: Solve for x
x = 539,729,016,137,887,104/828,927,902.68 - Step 6: Final answer
x = 651,116,960.10
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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.