Finding the Fourth Proportional to 85,831,862.68, 118,444,364.94 and 48,664,643.32
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Solution
The fourth proportional to 85,831,862.68, 118,444,364.94 and 48,664,643.32 is: 67,155,163.51
Step by Step Solution
- Step 1: Write the proportion equation
85,831,862.68 : 118,444,364.94 = 48,664,643.32 : x - Step 2: Convert to fraction form
85,831,862.68/118,444,364.94 = 48,664,643.32/x - Step 3: Cross multiply
85,831,862.68x = 118,444,364.94 × 48,664,643.32 - Step 4: Simplify right side
85,831,862.68x = 5,764,052,773,069,013 - Step 5: Solve for x
x = 5,764,052,773,069,013/85,831,862.68 - Step 6: Final answer
x = 67,155,163.51
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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.