Finding the Fourth Proportional to 113,026,812.65, 155,966,340.49 and 63,457,505.09
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Solution
The fourth proportional to 113,026,812.65, 155,966,340.49 and 63,457,505.09 is: 87,565,371.56
Step by Step Solution
- Step 1: Write the proportion equation
113,026,812.65 : 155,966,340.49 = 63,457,505.09 : x - Step 2: Convert to fraction form
113,026,812.65/155,966,340.49 = 63,457,505.09/x - Step 3: Cross multiply
113,026,812.65x = 155,966,340.49 × 63,457,505.09 - Step 4: Simplify right side
113,026,812.65x = 9,897,234,845,512,850 - Step 5: Solve for x
x = 9,897,234,845,512,850/113,026,812.65 - Step 6: Final answer
x = 87,565,371.56
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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.