Finding the Fourth Proportional to 124,724,343.98, 172,120,708.42 and 68,973,536.81
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Solution
The fourth proportional to 124,724,343.98, 172,120,708.42 and 68,973,536.81 is: 95,184,096.70
Step by Step Solution
- Step 1: Write the proportion equation
124,724,343.98 : 172,120,708.42 = 68,973,536.81 : x - Step 2: Convert to fraction form
124,724,343.98/172,120,708.42 = 68,973,536.81/x - Step 3: Cross multiply
124,724,343.98x = 172,120,708.42 × 68,973,536.81 - Step 4: Simplify right side
124,724,343.98x = 11,871,774,018,228,014 - Step 5: Solve for x
x = 11,871,774,018,228,014/124,724,343.98 - Step 6: Final answer
x = 95,184,096.70
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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.