Finding the Fourth Proportional to 129,295,612.20, 194,037,896.70 and 91,031,860.20
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Solution
The fourth proportional to 129,295,612.20, 194,037,896.70 and 91,031,860.20 is: 136,614,308.76
Step by Step Solution
- Step 1: Write the proportion equation
129,295,612.20 : 194,037,896.70 = 91,031,860.20 : x - Step 2: Convert to fraction form
129,295,612.20/194,037,896.70 = 91,031,860.20/x - Step 3: Cross multiply
129,295,612.20x = 194,037,896.70 × 91,031,860.20 - Step 4: Simplify right side
129,295,612.20x = 17,663,630,685,896,440 - Step 5: Solve for x
x = 17,663,630,685,896,440/129,295,612.20 - Step 6: Final answer
x = 136,614,308.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.