Finding the Fourth Proportional to 2,218,922,292.86, 3,062,114,415 and 1,201,655,615.90
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Solution
The fourth proportional to 2,218,922,292.86, 3,062,114,415 and 1,201,655,615.90 is: 1,658,285,643.96
Step by Step Solution
- Step 1: Write the proportion equation
2,218,922,292.86 : 3,062,114,415 = 1,201,655,615.90 : x - Step 2: Convert to fraction form
2,218,922,292.86/3,062,114,415 = 1,201,655,615.90/x - Step 3: Cross multiply
2,218,922,292.86x = 3,062,114,415 × 1,201,655,615.90 - Step 4: Simplify right side
2,218,922,292.86x = 3,679,606,983,297,782,784 - Step 5: Solve for x
x = 3,679,606,983,297,782,784/2,218,922,292.86 - Step 6: Final answer
x = 1,658,285,643.96
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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.