Finding the Fourth Proportional to 499,879,303.59, 689,780,922.62 and 276,855,142.71
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Solution
The fourth proportional to 499,879,303.59, 689,780,922.62 and 276,855,142.71 is: 382,031,011.08
Step by Step Solution
- Step 1: Write the proportion equation
499,879,303.59 : 689,780,922.62 = 276,855,142.71 : x - Step 2: Convert to fraction form
499,879,303.59/689,780,922.62 = 276,855,142.71/x - Step 3: Cross multiply
499,879,303.59x = 689,780,922.62 × 276,855,142.71 - Step 4: Simplify right side
499,879,303.59x = 190,969,395,769,211,264 - Step 5: Solve for x
x = 190,969,395,769,211,264/499,879,303.59 - Step 6: Final answer
x = 382,031,011.08
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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.