Finding the Fourth Proportional to 810,403,068.08, 1,215,725,672.70 and 257,723,526.80
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Solution
The fourth proportional to 810,403,068.08, 1,215,725,672.70 and 257,723,526.80 is: 386,623,792.94
Step by Step Solution
- Step 1: Write the proportion equation
810,403,068.08 : 1,215,725,672.70 = 257,723,526.80 : x - Step 2: Convert to fraction form
810,403,068.08/1,215,725,672.70 = 257,723,526.80/x - Step 3: Cross multiply
810,403,068.08x = 1,215,725,672.70 × 257,723,526.80 - Step 4: Simplify right side
810,403,068.08x = 313,321,107,989,546,496 - Step 5: Solve for x
x = 313,321,107,989,546,496/810,403,068.08 - Step 6: Final answer
x = 386,623,792.94
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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.