Finding the Fourth Proportional to 15,096,497.16, 20,830,398.64 and 8,903,481.78
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Solution
The fourth proportional to 15,096,497.16, 20,830,398.64 and 8,903,481.78 is: 12,285,172.70
Step by Step Solution
- Step 1: Write the proportion equation
15,096,497.16 : 20,830,398.64 = 8,903,481.78 : x - Step 2: Convert to fraction form
15,096,497.16/20,830,398.64 = 8,903,481.78/x - Step 3: Cross multiply
15,096,497.16x = 20,830,398.64 × 8,903,481.78 - Step 4: Simplify right side
15,096,497.16x = 185,463,074,700,061.06 - Step 5: Solve for x
x = 185,463,074,700,061.06/15,096,497.16 - Step 6: Final answer
x = 12,285,172.70
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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.