Finding the Fourth Proportional to 3,779,145,208.40, 5,668,717,812.60 and 1,325,730,117.20
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Solution
The fourth proportional to 3,779,145,208.40, 5,668,717,812.60 and 1,325,730,117.20 is: 1,988,595,175.80
Step by Step Solution
- Step 1: Write the proportion equation
3,779,145,208.40 : 5,668,717,812.60 = 1,325,730,117.20 : x - Step 2: Convert to fraction form
3,779,145,208.40/5,668,717,812.60 = 1,325,730,117.20/x - Step 3: Cross multiply
3,779,145,208.40x = 5,668,717,812.60 × 1,325,730,117.20 - Step 4: Simplify right side
3,779,145,208.40x = 7,515,189,930,071,926,784 - Step 5: Solve for x
x = 7,515,189,930,071,926,784/3,779,145,208.40 - Step 6: Final answer
x = 1,988,595,175.80
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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.