Finding the Fourth Proportional to 528,409,497.40, 792,614,246.10 and 344,743,487.80
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Solution
The fourth proportional to 528,409,497.40, 792,614,246.10 and 344,743,487.80 is: 517,115,231.70
Step by Step Solution
- Step 1: Write the proportion equation
528,409,497.40 : 792,614,246.10 = 344,743,487.80 : x - Step 2: Convert to fraction form
528,409,497.40/792,614,246.10 = 344,743,487.80/x - Step 3: Cross multiply
528,409,497.40x = 792,614,246.10 × 344,743,487.80 - Step 4: Simplify right side
528,409,497.40x = 273,248,599,680,481,568 - Step 5: Solve for x
x = 273,248,599,680,481,568/528,409,497.40 - Step 6: Final answer
x = 517,115,231.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.