Finding the Fourth Proportional to 3,779,143,620.40, 5,668,715,430.60 and 2,391,444,881.20
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Solution
The fourth proportional to 3,779,143,620.40, 5,668,715,430.60 and 2,391,444,881.20 is: 3,587,167,321.80
Step by Step Solution
- Step 1: Write the proportion equation
3,779,143,620.40 : 5,668,715,430.60 = 2,391,444,881.20 : x - Step 2: Convert to fraction form
3,779,143,620.40/5,668,715,430.60 = 2,391,444,881.20/x - Step 3: Cross multiply
3,779,143,620.40x = 5,668,715,430.60 × 2,391,444,881.20 - Step 4: Simplify right side
3,779,143,620.40x = 13,556,420,499,487,823,872 - Step 5: Solve for x
x = 13,556,420,499,487,823,872/3,779,143,620.40 - Step 6: Final answer
x = 3,587,167,321.80
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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.