Finding the Fourth Proportional to 649,315,763.82, 896,031,748.46 and 351,951,621.64
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Solution
The fourth proportional to 649,315,763.82, 896,031,748.46 and 351,951,621.64 is: 485,680,225.99
Step by Step Solution
- Step 1: Write the proportion equation
649,315,763.82 : 896,031,748.46 = 351,951,621.64 : x - Step 2: Convert to fraction form
649,315,763.82/896,031,748.46 = 351,951,621.64/x - Step 3: Cross multiply
649,315,763.82x = 896,031,748.46 × 351,951,621.64 - Step 4: Simplify right side
649,315,763.82x = 315,359,826,911,421,568 - Step 5: Solve for x
x = 315,359,826,911,421,568/649,315,763.82 - Step 6: Final answer
x = 485,680,225.99
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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.