Finding the Fourth Proportional to 227,536,014.72, 313,999,497.12 and 128,437,621.44
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Solution
The fourth proportional to 227,536,014.72, 313,999,497.12 and 128,437,621.44 is: 177,243,802.89
Step by Step Solution
- Step 1: Write the proportion equation
227,536,014.72 : 313,999,497.12 = 128,437,621.44 : x - Step 2: Convert to fraction form
227,536,014.72/313,999,497.12 = 128,437,621.44/x - Step 3: Cross multiply
227,536,014.72x = 313,999,497.12 × 128,437,621.44 - Step 4: Simplify right side
227,536,014.72x = 40,329,348,543,448,928 - Step 5: Solve for x
x = 40,329,348,543,448,928/227,536,014.72 - Step 6: Final answer
x = 177,243,802.89
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1.5x scale
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.