Finding the Fourth Proportional to 5,218,831,748.88, 7,201,988,863.56 and 2,871,988,292.88
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Solution
The fourth proportional to 5,218,831,748.88, 7,201,988,863.56 and 2,871,988,292.88 is: 3,963,344,422.06
Step by Step Solution
- Step 1: Write the proportion equation
5,218,831,748.88 : 7,201,988,863.56 = 2,871,988,292.88 : x - Step 2: Convert to fraction form
5,218,831,748.88/7,201,988,863.56 = 2,871,988,292.88/x - Step 3: Cross multiply
5,218,831,748.88x = 7,201,988,863.56 × 2,871,988,292.88 - Step 4: Simplify right side
5,218,831,748.88x = 20,684,027,701,596,459,008 - Step 5: Solve for x
x = 20,684,027,701,596,459,008/5,218,831,748.88 - Step 6: Final answer
x = 3,963,344,422.06
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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.