Finding the Fourth Proportional to 115,184,462.40, 172,776,693.60 and 84,573,460.80
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Solution
The fourth proportional to 115,184,462.40, 172,776,693.60 and 84,573,460.80 is: 126,860,191.20
Step by Step Solution
- Step 1: Write the proportion equation
115,184,462.40 : 172,776,693.60 = 84,573,460.80 : x - Step 2: Convert to fraction form
115,184,462.40/172,776,693.60 = 84,573,460.80/x - Step 3: Cross multiply
115,184,462.40x = 172,776,693.60 × 84,573,460.80 - Step 4: Simplify right side
115,184,462.40x = 14,612,322,923,333,210 - Step 5: Solve for x
x = 14,612,322,923,333,210/115,184,462.40 - Step 6: Final answer
x = 126,860,191.20
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1.5x scale
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.