Finding the Fourth Proportional to 416,831,399.07, 624,457,897.61 and 278,239,109.55
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Solution
The fourth proportional to 416,831,399.07, 624,457,897.61 and 278,239,109.55 is: 416,831,864.80
Step by Step Solution
- Step 1: Write the proportion equation
416,831,399.07 : 624,457,897.61 = 278,239,109.55 : x - Step 2: Convert to fraction form
416,831,399.07/624,457,897.61 = 278,239,109.55/x - Step 3: Cross multiply
416,831,399.07x = 624,457,897.61 × 278,239,109.55 - Step 4: Simplify right side
416,831,399.07x = 173,748,609,381,080,288 - Step 5: Solve for x
x = 173,748,609,381,080,288/416,831,399.07 - Step 6: Final answer
x = 416,831,864.80
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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.