Finding the Fourth Proportional to 724,144,991.40, 1,086,918,989.26 and 684,818,357.48
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Solution
The fourth proportional to 724,144,991.40, 1,086,918,989.26 and 684,818,357.48 is: 1,027,890,941.43
Step by Step Solution
- Step 1: Write the proportion equation
724,144,991.40 : 1,086,918,989.26 = 684,818,357.48 : x - Step 2: Convert to fraction form
724,144,991.40/1,086,918,989.26 = 684,818,357.48/x - Step 3: Cross multiply
724,144,991.40x = 1,086,918,989.26 × 684,818,357.48 - Step 4: Simplify right side
724,144,991.40x = 744,342,076,938,854,912 - Step 5: Solve for x
x = 744,342,076,938,854,912/724,144,991.40 - Step 6: Final answer
x = 1,027,890,941.43
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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.