Finding the Fourth Proportional to 85,831,868.57, 118,444,373.01 and 48,664,649.21
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Solution
The fourth proportional to 85,831,868.57, 118,444,373.01 and 48,664,649.21 is: 67,155,171.61
Step by Step Solution
- Step 1: Write the proportion equation
85,831,868.57 : 118,444,373.01 = 48,664,649.21 : x - Step 2: Convert to fraction form
85,831,868.57/118,444,373.01 = 48,664,649.21/x - Step 3: Cross multiply
85,831,868.57x = 118,444,373.01 × 48,664,649.21 - Step 4: Simplify right side
85,831,868.57x = 5,764,053,862,837,820 - Step 5: Solve for x
x = 5,764,053,862,837,820/85,831,868.57 - Step 6: Final answer
x = 67,155,171.61
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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.