Finding the Fourth Proportional to 1,424,355,917.60, 2,136,533,876.40 and 1,324,586,727.20
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Solution
The fourth proportional to 1,424,355,917.60, 2,136,533,876.40 and 1,324,586,727.20 is: 1,986,880,090.80
Step by Step Solution
- Step 1: Write the proportion equation
1,424,355,917.60 : 2,136,533,876.40 = 1,324,586,727.20 : x - Step 2: Convert to fraction form
1,424,355,917.60/2,136,533,876.40 = 1,324,586,727.20/x - Step 3: Cross multiply
1,424,355,917.60x = 2,136,533,876.40 × 1,324,586,727.20 - Step 4: Simplify right side
1,424,355,917.60x = 2,830,024,414,892,605,440 - Step 5: Solve for x
x = 2,830,024,414,892,605,440/1,424,355,917.60 - Step 6: Final answer
x = 1,986,880,090.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.