Finding the Fourth Proportional to 1,688,513,361.84, 2,330,148,664.26 and 935,875,076.40
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Solution
The fourth proportional to 1,688,513,361.84, 2,330,148,664.26 and 935,875,076.40 is: 1,291,507,730.10
Step by Step Solution
- Step 1: Write the proportion equation
1,688,513,361.84 : 2,330,148,664.26 = 935,875,076.40 : x - Step 2: Convert to fraction form
1,688,513,361.84/2,330,148,664.26 = 935,875,076.40/x - Step 3: Cross multiply
1,688,513,361.84x = 2,330,148,664.26 × 935,875,076.40 - Step 4: Simplify right side
1,688,513,361.84x = 2,180,728,059,187,685,632 - Step 5: Solve for x
x = 2,180,728,059,187,685,632/1,688,513,361.84 - Step 6: Final answer
x = 1,291,507,730.10
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.