Finding the Fourth Proportional to 124,724,331.63, 172,120,691.34 and 68,973,524.46
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Solution
The fourth proportional to 124,724,331.63, 172,120,691.34 and 68,973,524.46 is: 95,184,079.63
Step by Step Solution
- Step 1: Write the proportion equation
124,724,331.63 : 172,120,691.34 = 68,973,524.46 : x - Step 2: Convert to fraction form
124,724,331.63/172,120,691.34 = 68,973,524.46/x - Step 3: Cross multiply
124,724,331.63x = 172,120,691.34 × 68,973,524.46 - Step 4: Simplify right side
124,724,331.63x = 11,871,770,714,211,600 - Step 5: Solve for x
x = 11,871,770,714,211,600/124,724,331.63 - Step 6: Final answer
x = 95,184,079.63
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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.