Finding the Fourth Proportional to 812,274,563.73, 1,121,990,381.00 and 671,713,548.96
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Solution
The fourth proportional to 812,274,563.73, 1,121,990,381.00 and 671,713,548.96 is: 927,834,225.48
Step by Step Solution
- Step 1: Write the proportion equation
812,274,563.73 : 1,121,990,381.00 = 671,713,548.96 : x - Step 2: Convert to fraction form
812,274,563.73/1,121,990,381.00 = 671,713,548.96/x - Step 3: Cross multiply
812,274,563.73x = 1,121,990,381.00 × 671,713,548.96 - Step 4: Simplify right side
812,274,563.73x = 753,656,140,717,133,952 - Step 5: Solve for x
x = 753,656,140,717,133,952/812,274,563.73 - Step 6: Final answer
x = 927,834,225.48
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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.