Finding the Fourth Proportional to 478,685,610.74, 718,246,585.46 and 245,679,949.21
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Solution
The fourth proportional to 478,685,610.74, 718,246,585.46 and 245,679,949.21 is: 368,631,896.76
Step by Step Solution
- Step 1: Write the proportion equation
478,685,610.74 : 718,246,585.46 = 245,679,949.21 : x - Step 2: Convert to fraction form
478,685,610.74/718,246,585.46 = 245,679,949.21/x - Step 3: Cross multiply
478,685,610.74x = 718,246,585.46 × 245,679,949.21 - Step 4: Simplify right side
478,685,610.74x = 176,458,784,634,887,296 - Step 5: Solve for x
x = 176,458,784,634,887,296/478,685,610.74 - Step 6: Final answer
x = 368,631,896.76
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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.