Finding the Fourth Proportional to 1,254,759,983.14, 1,731,559,201.56 and 690,232,708.98
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Solution
The fourth proportional to 1,254,759,983.14, 1,731,559,201.56 and 690,232,708.98 is: 952,515,871.17
Step by Step Solution
- Step 1: Write the proportion equation
1,254,759,983.14 : 1,731,559,201.56 = 690,232,708.98 : x - Step 2: Convert to fraction form
1,254,759,983.14/1,731,559,201.56 = 690,232,708.98/x - Step 3: Cross multiply
1,254,759,983.14x = 1,731,559,201.56 × 690,232,708.98 - Step 4: Simplify right side
1,254,759,983.14x = 1,195,178,798,452,004,608 - Step 5: Solve for x
x = 1,195,178,798,452,004,608/1,254,759,983.14 - Step 6: Final answer
x = 952,515,871.17
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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.