Finding the Fourth Proportional to 1,513,303,686.40, 2,269,955,529.60 and 929,143,739.20
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Solution
The fourth proportional to 1,513,303,686.40, 2,269,955,529.60 and 929,143,739.20 is: 1,393,715,608.80
Step by Step Solution
- Step 1: Write the proportion equation
1,513,303,686.40 : 2,269,955,529.60 = 929,143,739.20 : x - Step 2: Convert to fraction form
1,513,303,686.40/2,269,955,529.60 = 929,143,739.20/x - Step 3: Cross multiply
1,513,303,686.40x = 2,269,955,529.60 × 929,143,739.20 - Step 4: Simplify right side
1,513,303,686.40x = 2,109,114,968,590,260,224 - Step 5: Solve for x
x = 2,109,114,968,590,260,224/1,513,303,686.40 - Step 6: Final answer
x = 1,393,715,608.80
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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.