Finding the Fourth Proportional to 1,512,283,657.12, 2,087,339,745.36 and 984,961,682.08
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Solution
The fourth proportional to 1,512,283,657.12, 2,087,339,745.36 and 984,961,682.08 is: 1,359,500,023.02
Step by Step Solution
- Step 1: Write the proportion equation
1,512,283,657.12 : 2,087,339,745.36 = 984,961,682.08 : x - Step 2: Convert to fraction form
1,512,283,657.12/2,087,339,745.36 = 984,961,682.08/x - Step 3: Cross multiply
1,512,283,657.12x = 2,087,339,745.36 × 984,961,682.08 - Step 4: Simplify right side
1,512,283,657.12x = 2,055,949,666,662,224,384 - Step 5: Solve for x
x = 2,055,949,666,662,224,384/1,512,283,657.12 - Step 6: Final answer
x = 1,359,500,023.02
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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.