Finding the Fourth Proportional to 836,781,501.05, 1,154,723,850.05 and 455,305,106.10
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Solution
The fourth proportional to 836,781,501.05, 1,154,723,850.05 and 455,305,106.10 is: 628,302,208.41
Step by Step Solution
- Step 1: Write the proportion equation
836,781,501.05 : 1,154,723,850.05 = 455,305,106.10 : x - Step 2: Convert to fraction form
836,781,501.05/1,154,723,850.05 = 455,305,106.10/x - Step 3: Cross multiply
836,781,501.05x = 1,154,723,850.05 × 455,305,106.10 - Step 4: Simplify right side
836,781,501.05x = 525,751,665,063,215,744 - Step 5: Solve for x
x = 525,751,665,063,215,744/836,781,501.05 - Step 6: Final answer
x = 628,302,208.41
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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.