Finding the Fourth Proportional to 1,279,704,277.04, 1,919,628,159.80 and 359,508,871.92
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Solution
The fourth proportional to 1,279,704,277.04, 1,919,628,159.80 and 359,508,871.92 is: 539,283,463.08
Step by Step Solution
- Step 1: Write the proportion equation
1,279,704,277.04 : 1,919,628,159.80 = 359,508,871.92 : x - Step 2: Convert to fraction form
1,279,704,277.04/1,919,628,159.80 = 359,508,871.92/x - Step 3: Cross multiply
1,279,704,277.04x = 1,919,628,159.80 × 359,508,871.92 - Step 4: Simplify right side
1,279,704,277.04x = 690,123,354,235,563,520 - Step 5: Solve for x
x = 690,123,354,235,563,520/1,279,704,277.04 - Step 6: Final answer
x = 539,283,463.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.