Finding the Fourth Proportional to 463,278,340.18, 639,321,636.54 and 251,583,320.35
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Solution
The fourth proportional to 463,278,340.18, 639,321,636.54 and 251,583,320.35 is: 347,183,639.17
Step by Step Solution
- Step 1: Write the proportion equation
463,278,340.18 : 639,321,636.54 = 251,583,320.35 : x - Step 2: Convert to fraction form
463,278,340.18/639,321,636.54 = 251,583,320.35/x - Step 3: Cross multiply
463,278,340.18x = 639,321,636.54 × 251,583,320.35 - Step 4: Simplify right side
463,278,340.18x = 160,842,660,092,329,088 - Step 5: Solve for x
x = 160,842,660,092,329,088/463,278,340.18 - Step 6: Final answer
x = 347,183,639.17
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1.5x scale
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.