Finding the Fourth Proportional to 260,260,184.48, 390,454,891.64 and 129,163,987.82
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Solution
The fourth proportional to 260,260,184.48, 390,454,891.64 and 129,163,987.82 is: 193,778,049.33
Step by Step Solution
- Step 1: Write the proportion equation
260,260,184.48 : 390,454,891.64 = 129,163,987.82 : x - Step 2: Convert to fraction form
260,260,184.48/390,454,891.64 = 129,163,987.82/x - Step 3: Cross multiply
260,260,184.48x = 390,454,891.64 × 129,163,987.82 - Step 4: Simplify right side
260,260,184.48x = 50,432,710,865,450,280 - Step 5: Solve for x
x = 50,432,710,865,450,280/260,260,184.48 - Step 6: Final answer
x = 193,778,049.33
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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.