Finding the Fourth Proportional to 399,776,213,541.60, 599,643,200,489.52 and 131,129,806,657.60
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Solution
The fourth proportional to 399,776,213,541.60, 599,643,200,489.52 and 131,129,806,657.60 is: 196,687,782,514.99
Step by Step Solution
- Step 1: Write the proportion equation
399,776,213,541.60 : 599,643,200,489.52 = 131,129,806,657.60 : x - Step 2: Convert to fraction form
399,776,213,541.60/599,643,200,489.52 = 131,129,806,657.60/x - Step 3: Cross multiply
399,776,213,541.60x = 599,643,200,489.52 × 131,129,806,657.60 - Step 4: Simplify right side
399,776,213,541.60x = 78,631,096,943,735,233,052,672 - Step 5: Solve for x
x = 78,631,096,943,735,233,052,672/399,776,213,541.60 - Step 6: Final answer
x = 196,687,782,514.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.