Finding the Fourth Proportional to 1,008,282,040.75, 1,391,453,819.99 and 562,241,050.66
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Solution
The fourth proportional to 1,008,282,040.75, 1,391,453,819.99 and 562,241,050.66 is: 775,906,369.53
Step by Step Solution
- Step 1: Write the proportion equation
1,008,282,040.75 : 1,391,453,819.99 = 562,241,050.66 : x - Step 2: Convert to fraction form
1,008,282,040.75/1,391,453,819.99 = 562,241,050.66/x - Step 3: Cross multiply
1,008,282,040.75x = 1,391,453,819.99 × 562,241,050.66 - Step 4: Simplify right side
1,008,282,040.75x = 782,332,457,696,048,128 - Step 5: Solve for x
x = 782,332,457,696,048,128/1,008,282,040.75 - Step 6: Final answer
x = 775,906,369.53
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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.