Finding the Fourth Proportional to 21,172,750,543.10, 31,762,575,674.55 and 6,251,424,447.99
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Solution
The fourth proportional to 21,172,750,543.10, 31,762,575,674.55 and 6,251,424,447.99 is: 9,378,155,270.80
Step by Step Solution
- Step 1: Write the proportion equation
21,172,750,543.10 : 31,762,575,674.55 = 6,251,424,447.99 : x - Step 2: Convert to fraction form
21,172,750,543.10/31,762,575,674.55 = 6,251,424,447.99/x - Step 3: Cross multiply
21,172,750,543.10x = 31,762,575,674.55 × 6,251,424,447.99 - Step 4: Simplify right side
21,172,750,543.10x = 198,561,342,103,014,309,888 - Step 5: Solve for x
x = 198,561,342,103,014,309,888/21,172,750,543.10 - Step 6: Final answer
x = 9,378,155,270.80
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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.