Finding the Fourth Proportional to 129,288,452.28, 178,421,849.99 and 70,554,901.92
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Solution
The fourth proportional to 129,288,452.28, 178,421,849.99 and 70,554,901.92 is: 97,367,830.65
Step by Step Solution
- Step 1: Write the proportion equation
129,288,452.28 : 178,421,849.99 = 70,554,901.92 : x - Step 2: Convert to fraction form
129,288,452.28/178,421,849.99 = 70,554,901.92/x - Step 3: Cross multiply
129,288,452.28x = 178,421,849.99 × 70,554,901.92 - Step 4: Simplify right side
129,288,452.28x = 12,588,536,126,429,404 - Step 5: Solve for x
x = 12,588,536,126,429,404/129,288,452.28 - Step 6: Final answer
x = 97,367,830.65
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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.