Finding the Fourth Proportional to 1,138,021,474.84, 1,707,275,878.68 and 340,401,260.68
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Solution
The fourth proportional to 1,138,021,474.84, 1,707,275,878.68 and 340,401,260.68 is: 510,674,775.72
Step by Step Solution
- Step 1: Write the proportion equation
1,138,021,474.84 : 1,707,275,878.68 = 340,401,260.68 : x - Step 2: Convert to fraction form
1,138,021,474.84/1,707,275,878.68 = 340,401,260.68/x - Step 3: Cross multiply
1,138,021,474.84x = 1,707,275,878.68 × 340,401,260.68 - Step 4: Simplify right side
1,138,021,474.84x = 581,158,861,431,226,752 - Step 5: Solve for x
x = 581,158,861,431,226,752/1,138,021,474.84 - Step 6: Final answer
x = 510,674,775.72
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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.