Finding the Fourth Proportional to 1,213,465,936.68, 1,674,571,087.62 and 656,536,763.88
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Solution
The fourth proportional to 1,213,465,936.68, 1,674,571,087.62 and 656,536,763.88 is: 906,014,293.04
Step by Step Solution
- Step 1: Write the proportion equation
1,213,465,936.68 : 1,674,571,087.62 = 656,536,763.88 : x - Step 2: Convert to fraction form
1,213,465,936.68/1,674,571,087.62 = 656,536,763.88/x - Step 3: Cross multiply
1,213,465,936.68x = 1,674,571,087.62 × 656,536,763.88 - Step 4: Simplify right side
1,213,465,936.68x = 1,099,417,482,753,046,656 - Step 5: Solve for x
x = 1,099,417,482,753,046,656/1,213,465,936.68 - Step 6: Final answer
x = 906,014,293.04
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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.