Finding the Fourth Proportional to 831,868,219.74, 1,148,014,015.37 and 460,590,283.92
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Solution
The fourth proportional to 831,868,219.74, 1,148,014,015.37 and 460,590,283.92 is: 635,634,453.55
Step by Step Solution
- Step 1: Write the proportion equation
831,868,219.74 : 1,148,014,015.37 = 460,590,283.92 : x - Step 2: Convert to fraction form
831,868,219.74/1,148,014,015.37 = 460,590,283.92/x - Step 3: Cross multiply
831,868,219.74x = 1,148,014,015.37 × 460,590,283.92 - Step 4: Simplify right side
831,868,219.74x = 528,764,101,280,696,576 - Step 5: Solve for x
x = 528,764,101,280,696,576/831,868,219.74 - Step 6: Final answer
x = 635,634,453.55
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Double scale
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1.5x scale
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.