Finding the Fourth Proportional to 1,688,446,446.74, 2,330,056,317.50 and 935,808,213.96
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Solution
The fourth proportional to 1,688,446,446.74, 2,330,056,317.50 and 935,808,213.96 is: 1,291,415,457.75
Step by Step Solution
- Step 1: Write the proportion equation
1,688,446,446.74 : 2,330,056,317.50 = 935,808,213.96 : x - Step 2: Convert to fraction form
1,688,446,446.74/2,330,056,317.50 = 935,808,213.96/x - Step 3: Cross multiply
1,688,446,446.74x = 2,330,056,317.50 × 935,808,213.96 - Step 4: Simplify right side
1,688,446,446.74x = 2,180,485,840,905,889,792 - Step 5: Solve for x
x = 2,180,485,840,905,889,792/1,688,446,446.74 - Step 6: Final answer
x = 1,291,415,457.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.