Finding the Fourth Proportional to 126,721,109.92, 174,875,203.44 and 68,774,357.92
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Solution
The fourth proportional to 126,721,109.92, 174,875,203.44 and 68,774,357.92 is: 94,908,652.87
Step by Step Solution
- Step 1: Write the proportion equation
126,721,109.92 : 174,875,203.44 = 68,774,357.92 : x - Step 2: Convert to fraction form
126,721,109.92/174,875,203.44 = 68,774,357.92/x - Step 3: Cross multiply
126,721,109.92x = 174,875,203.44 × 68,774,357.92 - Step 4: Simplify right side
126,721,109.92x = 12,026,929,832,715,376 - Step 5: Solve for x
x = 12,026,929,832,715,376/126,721,109.92 - Step 6: Final answer
x = 94,908,652.87
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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.