Finding the Fourth Proportional to 98,609,245.80, 136,075,779.98 and 53,954,251.40
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Solution
The fourth proportional to 98,609,245.80, 136,075,779.98 and 53,954,251.40 is: 74,454,142.54
Step by Step Solution
- Step 1: Write the proportion equation
98,609,245.80 : 136,075,779.98 = 53,954,251.40 : x - Step 2: Convert to fraction form
98,609,245.80/136,075,779.98 = 53,954,251.40/x - Step 3: Cross multiply
98,609,245.80x = 136,075,779.98 × 53,954,251.40 - Step 4: Simplify right side
98,609,245.80x = 7,341,866,842,492,006 - Step 5: Solve for x
x = 7,341,866,842,492,006/98,609,245.80 - Step 6: Final answer
x = 74,454,142.54
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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.