Finding the Fourth Proportional to 135,960,312.11, 187,625,257.71 and 74,080,650.67
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Solution
The fourth proportional to 135,960,312.11, 187,625,257.71 and 74,080,650.67 is: 102,231,312.63
Step by Step Solution
- Step 1: Write the proportion equation
135,960,312.11 : 187,625,257.71 = 74,080,650.67 : x - Step 2: Convert to fraction form
135,960,312.11/187,625,257.71 = 74,080,650.67/x - Step 3: Cross multiply
135,960,312.11x = 187,625,257.71 × 74,080,650.67 - Step 4: Simplify right side
135,960,312.11x = 13,899,401,172,536,370 - Step 5: Solve for x
x = 13,899,401,172,536,370/135,960,312.11 - Step 6: Final answer
x = 102,231,312.63
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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.