Finding the Fourth Proportional to 4,748,612,608.72, 7,122,979,532.62 and 1,254,987,897.75
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Solution
The fourth proportional to 4,748,612,608.72, 7,122,979,532.62 and 1,254,987,897.75 is: 1,882,497,867.47
Step by Step Solution
- Step 1: Write the proportion equation
4,748,612,608.72 : 7,122,979,532.62 = 1,254,987,897.75 : x - Step 2: Convert to fraction form
4,748,612,608.72/7,122,979,532.62 = 1,254,987,897.75/x - Step 3: Cross multiply
4,748,612,608.72x = 7,122,979,532.62 × 1,254,987,897.75 - Step 4: Simplify right side
4,748,612,608.72x = 8,939,253,109,360,683,008 - Step 5: Solve for x
x = 8,939,253,109,360,683,008/4,748,612,608.72 - Step 6: Final answer
x = 1,882,497,867.47
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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.