Finding the Fourth Proportional to 122,471,907.07, 169,011,157.25 and 67,467,763.57
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Solution
The fourth proportional to 122,471,907.07, 169,011,157.25 and 67,467,763.57 is: 93,105,472.68
Step by Step Solution
- Step 1: Write the proportion equation
122,471,907.07 : 169,011,157.25 = 67,467,763.57 : x - Step 2: Convert to fraction form
122,471,907.07/169,011,157.25 = 67,467,763.57/x - Step 3: Cross multiply
122,471,907.07x = 169,011,157.25 × 67,467,763.57 - Step 4: Simplify right side
122,471,907.07x = 11,402,804,798,074,900 - Step 5: Solve for x
x = 11,402,804,798,074,900/122,471,907.07 - Step 6: Final answer
x = 93,105,472.68
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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.