Finding the Fourth Proportional to 122,417,771.91, 168,923,660.86 and 69,477,642.46
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Solution
The fourth proportional to 122,417,771.91, 168,923,660.86 and 69,477,642.46 is: 95,871,845.48
Step by Step Solution
- Step 1: Write the proportion equation
122,417,771.91 : 168,923,660.86 = 69,477,642.46 : x - Step 2: Convert to fraction form
122,417,771.91/168,923,660.86 = 69,477,642.46/x - Step 3: Cross multiply
122,417,771.91x = 168,923,660.86 × 69,477,642.46 - Step 4: Simplify right side
122,417,771.91x = 11,736,417,712,265,376 - Step 5: Solve for x
x = 11,736,417,712,265,376/122,417,771.91 - Step 6: Final answer
x = 95,871,845.48
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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.