Finding the Fourth Proportional to 409,236,621.60, 564,996,805.20 and 266,318,568.48
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Solution
The fourth proportional to 409,236,621.60, 564,996,805.20 and 266,318,568.48 is: 367,682,490.80
Step by Step Solution
- Step 1: Write the proportion equation
409,236,621.60 : 564,996,805.20 = 266,318,568.48 : x - Step 2: Convert to fraction form
409,236,621.60/564,996,805.20 = 266,318,568.48/x - Step 3: Cross multiply
409,236,621.60x = 564,996,805.20 × 266,318,568.48 - Step 4: Simplify right side
409,236,621.60x = 150,469,140,356,637,440 - Step 5: Solve for x
x = 150,469,140,356,637,440/409,236,621.60 - Step 6: Final answer
x = 367,682,490.80
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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.