Finding the Fourth Proportional to 3,779,145,135.30, 5,668,717,702.95 and 2,860,815,087.30
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Solution
The fourth proportional to 3,779,145,135.30, 5,668,717,702.95 and 2,860,815,087.30 is: 4,291,222,630.95
Step by Step Solution
- Step 1: Write the proportion equation
3,779,145,135.30 : 5,668,717,702.95 = 2,860,815,087.30 : x - Step 2: Convert to fraction form
3,779,145,135.30/5,668,717,702.95 = 2,860,815,087.30/x - Step 3: Cross multiply
3,779,145,135.30x = 5,668,717,702.95 × 2,860,815,087.30 - Step 4: Simplify right side
3,779,145,135.30x = 16,217,153,130,243,960,832 - Step 5: Solve for x
x = 16,217,153,130,243,960,832/3,779,145,135.30 - Step 6: Final answer
x = 4,291,222,630.95
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Double scale
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Similar ratio
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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.