Finding the Fourth Proportional to 817,315,945.24, 1,128,538,655.94 and 658,040,122.84
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Solution
The fourth proportional to 817,315,945.24, 1,128,538,655.94 and 658,040,122.84 is: 908,612,783.23
Step by Step Solution
- Step 1: Write the proportion equation
817,315,945.24 : 1,128,538,655.94 = 658,040,122.84 : x - Step 2: Convert to fraction form
817,315,945.24/1,128,538,655.94 = 658,040,122.84/x - Step 3: Cross multiply
817,315,945.24x = 1,128,538,655.94 × 658,040,122.84 - Step 4: Simplify right side
817,315,945.24x = 742,623,715,784,446,208 - Step 5: Solve for x
x = 742,623,715,784,446,208/817,315,945.24 - Step 6: Final answer
x = 908,612,783.23
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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.