Finding the Fourth Proportional to 403,569,149.40, 605,353,724.10 and 305,996,581.80
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Solution
The fourth proportional to 403,569,149.40, 605,353,724.10 and 305,996,581.80 is: 458,994,872.70
Step by Step Solution
- Step 1: Write the proportion equation
403,569,149.40 : 605,353,724.10 = 305,996,581.80 : x - Step 2: Convert to fraction form
403,569,149.40/605,353,724.10 = 305,996,581.80/x - Step 3: Cross multiply
403,569,149.40x = 605,353,724.10 × 305,996,581.80 - Step 4: Simplify right side
403,569,149.40x = 185,236,170,354,500,288 - Step 5: Solve for x
x = 185,236,170,354,500,288/403,569,149.40 - Step 6: Final answer
x = 458,994,872.70
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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.