Finding the Fourth Proportional to 261,645,611.70, 392,468,417.55 and 261,645,611.70
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Solution
The fourth proportional to 261,645,611.70, 392,468,417.55 and 261,645,611.70 is: 392,468,417.55
Step by Step Solution
- Step 1: Write the proportion equation
261,645,611.70 : 392,468,417.55 = 261,645,611.70 : x - Step 2: Convert to fraction form
261,645,611.70/392,468,417.55 = 261,645,611.70/x - Step 3: Cross multiply
261,645,611.70x = 392,468,417.55 × 261,645,611.70 - Step 4: Simplify right side
261,645,611.70x = 102,687,639,182,800,768 - Step 5: Solve for x
x = 102,687,639,182,800,768/261,645,611.70 - Step 6: Final answer
x = 392,468,417.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.