Finding the Fourth Proportional to 10,553,029.12, 14,543,276.80 and 8,457,491.28
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Solution
The fourth proportional to 10,553,029.12, 14,543,276.80 and 8,457,491.28 is: 11,655,386.84
Step by Step Solution
- Step 1: Write the proportion equation
10,553,029.12 : 14,543,276.80 = 8,457,491.28 : x - Step 2: Convert to fraction form
10,553,029.12/14,543,276.80 = 8,457,491.28/x - Step 3: Cross multiply
10,553,029.12x = 14,543,276.80 × 8,457,491.28 - Step 4: Simplify right side
10,553,029.12x = 122,999,636,718,626.30 - Step 5: Solve for x
x = 122,999,636,718,626.30/10,553,029.12 - Step 6: Final answer
x = 11,655,386.84
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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.