Finding the Fourth Proportional to 221,277,494.86, 305,354,944.16 and 122,156,118.12
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Solution
The fourth proportional to 221,277,494.86, 305,354,944.16 and 122,156,118.12 is: 168,571,027.31
Step by Step Solution
- Step 1: Write the proportion equation
221,277,494.86 : 305,354,944.16 = 122,156,118.12 : x - Step 2: Convert to fraction form
221,277,494.86/305,354,944.16 = 122,156,118.12/x - Step 3: Cross multiply
221,277,494.86x = 305,354,944.16 × 122,156,118.12 - Step 4: Simplify right side
221,277,494.86x = 37,300,974,628,785,440 - Step 5: Solve for x
x = 37,300,974,628,785,440/221,277,494.86 - Step 6: Final answer
x = 168,571,027.31
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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.