Finding the Fourth Proportional to 679,914,502.20, 1,019,871,753.30 and 531,961,327.80
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Solution
The fourth proportional to 679,914,502.20, 1,019,871,753.30 and 531,961,327.80 is: 797,941,991.70
Step by Step Solution
- Step 1: Write the proportion equation
679,914,502.20 : 1,019,871,753.30 = 531,961,327.80 : x - Step 2: Convert to fraction form
679,914,502.20/1,019,871,753.30 = 531,961,327.80/x - Step 3: Cross multiply
679,914,502.20x = 1,019,871,753.30 × 531,961,327.80 - Step 4: Simplify right side
679,914,502.20x = 542,532,332,071,182,016 - Step 5: Solve for x
x = 542,532,332,071,182,016/679,914,502.20 - Step 6: Final answer
x = 797,941,991.70
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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.