Finding the Fourth Proportional to 98,668,833.11, 136,159,919.97 and 56,852,984.87
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Solution
The fourth proportional to 98,668,833.11, 136,159,919.97 and 56,852,984.87 is: 78,455,350.35
Step by Step Solution
- Step 1: Write the proportion equation
98,668,833.11 : 136,159,919.97 = 56,852,984.87 : x - Step 2: Convert to fraction form
98,668,833.11/136,159,919.97 = 56,852,984.87/x - Step 3: Cross multiply
98,668,833.11x = 136,159,919.97 × 56,852,984.87 - Step 4: Simplify right side
98,668,833.11x = 7,741,097,869,954,820 - Step 5: Solve for x
x = 7,741,097,869,954,820/98,668,833.11 - Step 6: Final answer
x = 78,455,350.35
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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.