Finding the Fourth Proportional to 1,163,983,748.64, 1,606,057,786.80 and 668,850,797.76
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Solution
The fourth proportional to 1,163,983,748.64, 1,606,057,786.80 and 668,850,797.76 is: 922,876,314.39
Step by Step Solution
- Step 1: Write the proportion equation
1,163,983,748.64 : 1,606,057,786.80 = 668,850,797.76 : x - Step 2: Convert to fraction form
1,163,983,748.64/1,606,057,786.80 = 668,850,797.76/x - Step 3: Cross multiply
1,163,983,748.64x = 1,606,057,786.80 × 668,850,797.76 - Step 4: Simplify right side
1,163,983,748.64x = 1,074,213,031,949,840,000 - Step 5: Solve for x
x = 1,074,213,031,949,840,000/1,163,983,748.64 - Step 6: Final answer
x = 922,876,314.39
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1.5x scale
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.