Finding the Fourth Proportional to 247,102,509.78, 341,000,527.74 and 135,595,216.26
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Solution
The fourth proportional to 247,102,509.78, 341,000,527.74 and 135,595,216.26 is: 187,120,884.95
Step by Step Solution
- Step 1: Write the proportion equation
247,102,509.78 : 341,000,527.74 = 135,595,216.26 : x - Step 2: Convert to fraction form
247,102,509.78/341,000,527.74 = 135,595,216.26/x - Step 3: Cross multiply
247,102,509.78x = 341,000,527.74 × 135,595,216.26 - Step 4: Simplify right side
247,102,509.78x = 46,238,040,303,679,424 - Step 5: Solve for x
x = 46,238,040,303,679,424/247,102,509.78 - Step 6: Final answer
x = 187,120,884.95
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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.