Finding the Fourth Proportional to 1,688,446,406.72, 2,330,056,262.22 and 935,808,173.94
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Solution
The fourth proportional to 1,688,446,406.72, 2,330,056,262.22 and 935,808,173.94 is: 1,291,415,402.50
Step by Step Solution
- Step 1: Write the proportion equation
1,688,446,406.72 : 2,330,056,262.22 = 935,808,173.94 : x - Step 2: Convert to fraction form
1,688,446,406.72/2,330,056,262.22 = 935,808,173.94/x - Step 3: Cross multiply
1,688,446,406.72x = 2,330,056,262.22 × 935,808,173.94 - Step 4: Simplify right side
1,688,446,406.72x = 2,180,485,695,925,560,064 - Step 5: Solve for x
x = 2,180,485,695,925,560,064/1,688,446,406.72 - Step 6: Final answer
x = 1,291,415,402.50
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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.