Finding the Fourth Proportional to 414,989,688.30, 622,484,532.45 and 127,775,352.30
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Solution
The fourth proportional to 414,989,688.30, 622,484,532.45 and 127,775,352.30 is: 191,663,028.45
Step by Step Solution
- Step 1: Write the proportion equation
414,989,688.30 : 622,484,532.45 = 127,775,352.30 : x - Step 2: Convert to fraction form
414,989,688.30/622,484,532.45 = 127,775,352.30/x - Step 3: Cross multiply
414,989,688.30x = 622,484,532.45 × 127,775,352.30 - Step 4: Simplify right side
414,989,688.30x = 79,538,180,435,099,536 - Step 5: Solve for x
x = 79,538,180,435,099,536/414,989,688.30 - Step 6: Final answer
x = 191,663,028.45
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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.