Finding the Fourth Proportional to 248,279,442.84, 342,636,261.30 and 138,271,155.84
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Solution
The fourth proportional to 248,279,442.84, 342,636,261.30 and 138,271,155.84 is: 190,820,115.19
Step by Step Solution
- Step 1: Write the proportion equation
248,279,442.84 : 342,636,261.30 = 138,271,155.84 : x - Step 2: Convert to fraction form
248,279,442.84/342,636,261.30 = 138,271,155.84/x - Step 3: Cross multiply
248,279,442.84x = 342,636,261.30 × 138,271,155.84 - Step 4: Simplify right side
248,279,442.84x = 47,376,711,882,647,264 - Step 5: Solve for x
x = 47,376,711,882,647,264/248,279,442.84 - Step 6: Final answer
x = 190,820,115.19
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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.