Finding the Fourth Proportional to 255,059,405,556.12, 351,979,887,888.06 and 139,316,239,003.08
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Solution
The fourth proportional to 255,059,405,556.12, 351,979,887,888.06 and 139,316,239,003.08 is: 192,255,267,271.46
Step by Step Solution
- Step 1: Write the proportion equation
255,059,405,556.12 : 351,979,887,888.06 = 139,316,239,003.08 : x - Step 2: Convert to fraction form
255,059,405,556.12/351,979,887,888.06 = 139,316,239,003.08/x - Step 3: Cross multiply
255,059,405,556.12x = 351,979,887,888.06 × 139,316,239,003.08 - Step 4: Simplify right side
255,059,405,556.12x = 49,036,514,185,290,262,249,472 - Step 5: Solve for x
x = 49,036,514,185,290,262,249,472/255,059,405,556.12 - Step 6: Final answer
x = 192,255,267,271.46
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1.5x scale
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.