Finding the Fourth Proportional to 74,543,405.02, 102,641,750.91 and 74,328,171.41
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Solution
The fourth proportional to 74,543,405.02, 102,641,750.91 and 74,328,171.41 is: 102,345,387.28
Step by Step Solution
- Step 1: Write the proportion equation
74,543,405.02 : 102,641,750.91 = 74,328,171.41 : x - Step 2: Convert to fraction form
74,543,405.02/102,641,750.91 = 74,328,171.41/x - Step 3: Cross multiply
74,543,405.02x = 102,641,750.91 × 74,328,171.41 - Step 4: Simplify right side
74,543,405.02x = 7,629,173,655,717,607 - Step 5: Solve for x
x = 7,629,173,655,717,607/74,543,405.02 - Step 6: Final answer
x = 102,345,387.28
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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.