Finding the Fourth Proportional to 1,213,465,935.68, 1,674,571,086.24 and 656,536,762.88
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Solution
The fourth proportional to 1,213,465,935.68, 1,674,571,086.24 and 656,536,762.88 is: 906,014,291.66
Step by Step Solution
- Step 1: Write the proportion equation
1,213,465,935.68 : 1,674,571,086.24 = 656,536,762.88 : x - Step 2: Convert to fraction form
1,213,465,935.68/1,674,571,086.24 = 656,536,762.88/x - Step 3: Cross multiply
1,213,465,935.68x = 1,674,571,086.24 × 656,536,762.88 - Step 4: Simplify right side
1,213,465,935.68x = 1,099,417,480,172,454,912 - Step 5: Solve for x
x = 1,099,417,480,172,454,912/1,213,465,935.68 - Step 6: Final answer
x = 906,014,291.66
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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.