Finding the Fourth Proportional to 1,198,464,985.20, 1,797,697,477.80 and 926,367,193.20
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Solution
The fourth proportional to 1,198,464,985.20, 1,797,697,477.80 and 926,367,193.20 is: 1,389,550,789.80
Step by Step Solution
- Step 1: Write the proportion equation
1,198,464,985.20 : 1,797,697,477.80 = 926,367,193.20 : x - Step 2: Convert to fraction form
1,198,464,985.20/1,797,697,477.80 = 926,367,193.20/x - Step 3: Cross multiply
1,198,464,985.20x = 1,797,697,477.80 × 926,367,193.20 - Step 4: Simplify right side
1,198,464,985.20x = 1,665,327,966,732,305,408 - Step 5: Solve for x
x = 1,665,327,966,732,305,408/1,198,464,985.20 - Step 6: Final answer
x = 1,389,550,789.80
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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.