Finding the Fourth Proportional to 126,721,308.42, 174,875,476.77 and 68,774,556.42
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Solution
The fourth proportional to 126,721,308.42, 174,875,476.77 and 68,774,556.42 is: 94,908,926.47
Step by Step Solution
- Step 1: Write the proportion equation
126,721,308.42 : 174,875,476.77 = 68,774,556.42 : x - Step 2: Convert to fraction form
126,721,308.42/174,875,476.77 = 68,774,556.42/x - Step 3: Cross multiply
126,721,308.42x = 174,875,476.77 × 68,774,556.42 - Step 4: Simplify right side
126,721,308.42x = 12,026,983,343,592,766 - Step 5: Solve for x
x = 12,026,983,343,592,766/126,721,308.42 - Step 6: Final answer
x = 94,908,926.47
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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.