Finding the Fourth Proportional to 125,291,317.05, 172,903,197.69 and 70,288,354.53
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Solution
The fourth proportional to 125,291,317.05, 172,903,197.69 and 70,288,354.53 is: 96,998,591.32
Step by Step Solution
- Step 1: Write the proportion equation
125,291,317.05 : 172,903,197.69 = 70,288,354.53 : x - Step 2: Convert to fraction form
125,291,317.05/172,903,197.69 = 70,288,354.53/x - Step 3: Cross multiply
125,291,317.05x = 172,903,197.69 × 70,288,354.53 - Step 4: Simplify right side
125,291,317.05x = 12,153,081,258,605,398 - Step 5: Solve for x
x = 12,153,081,258,605,398/125,291,317.05 - Step 6: Final answer
x = 96,998,591.32
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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.