Finding the Fourth Proportional to 129,679,634, 179,011,136.08 and 87,920,894
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Solution
The fourth proportional to 129,679,634, 179,011,136.08 and 87,920,894 is: 121,366,930.45
Step by Step Solution
- Step 1: Write the proportion equation
129,679,634 : 179,011,136.08 = 87,920,894 : x - Step 2: Convert to fraction form
129,679,634/179,011,136.08 = 87,920,894/x - Step 3: Cross multiply
129,679,634x = 179,011,136.08 × 87,920,894 - Step 4: Simplify right side
129,679,634x = 15,738,819,120,109,256 - Step 5: Solve for x
x = 15,738,819,120,109,256/129,679,634 - Step 6: Final answer
x = 121,366,930.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.