Finding the Fourth Proportional to 930,314,943.09, 1,394,157,096.10 and 515,974,310.23
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Solution
The fourth proportional to 930,314,943.09, 1,394,157,096.10 and 515,974,310.23 is: 773,231,959.09
Step by Step Solution
- Step 1: Write the proportion equation
930,314,943.09 : 1,394,157,096.10 = 515,974,310.23 : x - Step 2: Convert to fraction form
930,314,943.09/1,394,157,096.10 = 515,974,310.23/x - Step 3: Cross multiply
930,314,943.09x = 1,394,157,096.10 × 515,974,310.23 - Step 4: Simplify right side
930,314,943.09x = 719,349,246,012,457,344 - Step 5: Solve for x
x = 719,349,246,012,457,344/930,314,943.09 - Step 6: Final answer
x = 773,231,959.09
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Double scale
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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.