Finding the Fourth Proportional to 136,209,738.24, 187,975,083.24 and 77,482,748.88
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Solution
The fourth proportional to 136,209,738.24, 187,975,083.24 and 77,482,748.88 is: 106,929,404.30
Step by Step Solution
- Step 1: Write the proportion equation
136,209,738.24 : 187,975,083.24 = 77,482,748.88 : x - Step 2: Convert to fraction form
136,209,738.24/187,975,083.24 = 77,482,748.88/x - Step 3: Cross multiply
136,209,738.24x = 187,975,083.24 × 77,482,748.88 - Step 4: Simplify right side
136,209,738.24x = 14,564,826,170,382,016 - Step 5: Solve for x
x = 14,564,826,170,382,016/136,209,738.24 - Step 6: Final answer
x = 106,929,404.30
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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.