Finding the Fourth Proportional to 402,268,802.70, 603,403,204.05 and 143,775,900.30
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Solution
The fourth proportional to 402,268,802.70, 603,403,204.05 and 143,775,900.30 is: 215,663,850.45
Step by Step Solution
- Step 1: Write the proportion equation
402,268,802.70 : 603,403,204.05 = 143,775,900.30 : x - Step 2: Convert to fraction form
402,268,802.70/603,403,204.05 = 143,775,900.30/x - Step 3: Cross multiply
402,268,802.70x = 603,403,204.05 × 143,775,900.30 - Step 4: Simplify right side
402,268,802.70x = 86,754,838,906,193,360 - Step 5: Solve for x
x = 86,754,838,906,193,360/402,268,802.70 - Step 6: Final answer
x = 215,663,850.45
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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.