Finding the Fourth Proportional to 103,305,245.32, 142,567,686.12 and 56,895,486.94
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Solution
The fourth proportional to 103,305,245.32, 142,567,686.12 and 56,895,486.94 is: 78,519,322.99
Step by Step Solution
- Step 1: Write the proportion equation
103,305,245.32 : 142,567,686.12 = 56,895,486.94 : x - Step 2: Convert to fraction form
103,305,245.32/142,567,686.12 = 56,895,486.94/x - Step 3: Cross multiply
103,305,245.32x = 142,567,686.12 × 56,895,486.94 - Step 4: Simplify right side
103,305,245.32x = 8,111,457,923,706,479 - Step 5: Solve for x
x = 8,111,457,923,706,479/103,305,245.32 - Step 6: Final answer
x = 78,519,322.99
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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.