Finding the Fourth Proportional to 5,319,328,691.74, 7,981,008,231.86 and 3,193,658,829.53
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Solution
The fourth proportional to 5,319,328,691.74, 7,981,008,231.86 and 3,193,658,829.53 is: 4,791,698,141.87
Step by Step Solution
- Step 1: Write the proportion equation
5,319,328,691.74 : 7,981,008,231.86 = 3,193,658,829.53 : x - Step 2: Convert to fraction form
5,319,328,691.74/7,981,008,231.86 = 3,193,658,829.53/x - Step 3: Cross multiply
5,319,328,691.74x = 7,981,008,231.86 × 3,193,658,829.53 - Step 4: Simplify right side
5,319,328,691.74x = 25,488,617,408,231,301,120 - Step 5: Solve for x
x = 25,488,617,408,231,301,120/5,319,328,691.74 - Step 6: Final answer
x = 4,791,698,141.87
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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.