Finding the Fourth Proportional to 1,507,107,360.26, 2,079,809,881.40 and 838,038,039.96
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Solution
The fourth proportional to 1,507,107,360.26, 2,079,809,881.40 and 838,038,039.96 is: 1,156,493,453.92
Step by Step Solution
- Step 1: Write the proportion equation
1,507,107,360.26 : 2,079,809,881.40 = 838,038,039.96 : x - Step 2: Convert to fraction form
1,507,107,360.26/2,079,809,881.40 = 838,038,039.96/x - Step 3: Cross multiply
1,507,107,360.26x = 2,079,809,881.40 × 838,038,039.96 - Step 4: Simplify right side
1,507,107,360.26x = 1,742,959,796,493,705,984 - Step 5: Solve for x
x = 1,742,959,796,493,705,984/1,507,107,360.26 - Step 6: Final answer
x = 1,156,493,453.92
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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.