Finding the Fourth Proportional to 887,681,387.70, 1,245,474,920.70 and 887,681,387.70
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Solution
The fourth proportional to 887,681,387.70, 1,245,474,920.70 and 887,681,387.70 is: 1,245,474,920.70
Step by Step Solution
- Step 1: Write the proportion equation
887,681,387.70 : 1,245,474,920.70 = 887,681,387.70 : x - Step 2: Convert to fraction form
887,681,387.70/1,245,474,920.70 = 887,681,387.70/x - Step 3: Cross multiply
887,681,387.70x = 1,245,474,920.70 × 887,681,387.70 - Step 4: Simplify right side
887,681,387.70x = 1,105,584,905,952,523,520 - Step 5: Solve for x
x = 1,105,584,905,952,523,520/887,681,387.70 - Step 6: Final answer
x = 1,245,474,920.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.