Finding the Fourth Proportional to 810,244,778.77, 1,118,123,219.50 and 457,813,202.68
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Solution
The fourth proportional to 810,244,778.77, 1,118,123,219.50 and 457,813,202.68 is: 631,773,984.26
Step by Step Solution
- Step 1: Write the proportion equation
810,244,778.77 : 1,118,123,219.50 = 457,813,202.68 : x - Step 2: Convert to fraction form
810,244,778.77/1,118,123,219.50 = 457,813,202.68/x - Step 3: Cross multiply
810,244,778.77x = 1,118,123,219.50 × 457,813,202.68 - Step 4: Simplify right side
810,244,778.77x = 511,891,572,110,420,672 - Step 5: Solve for x
x = 511,891,572,110,420,672/810,244,778.77 - Step 6: Final answer
x = 631,773,984.26
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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.