Finding the Fourth Proportional to 260,017,425.80, 390,026,138.70 and 87,436,881.80
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Solution
The fourth proportional to 260,017,425.80, 390,026,138.70 and 87,436,881.80 is: 131,155,322.70
Step by Step Solution
- Step 1: Write the proportion equation
260,017,425.80 : 390,026,138.70 = 87,436,881.80 : x - Step 2: Convert to fraction form
260,017,425.80/390,026,138.70 = 87,436,881.80/x - Step 3: Cross multiply
260,017,425.80x = 390,026,138.70 × 87,436,881.80 - Step 4: Simplify right side
260,017,425.80x = 34,102,669,388,422,304 - Step 5: Solve for x
x = 34,102,669,388,422,304/260,017,425.80 - Step 6: Final answer
x = 131,155,322.70
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1.5x scale
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.