Finding the Fourth Proportional to 126,721,135.92, 174,875,239.32 and 68,774,383.92
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Solution
The fourth proportional to 126,721,135.92, 174,875,239.32 and 68,774,383.92 is: 94,908,688.75
Step by Step Solution
- Step 1: Write the proportion equation
126,721,135.92 : 174,875,239.32 = 68,774,383.92 : x - Step 2: Convert to fraction form
126,721,135.92/174,875,239.32 = 68,774,383.92/x - Step 3: Cross multiply
126,721,135.92x = 174,875,239.32 × 68,774,383.92 - Step 4: Simplify right side
126,721,135.92x = 12,026,936,847,095,560 - Step 5: Solve for x
x = 12,026,936,847,095,560/126,721,135.92 - Step 6: Final answer
x = 94,908,688.75
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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.