Finding the Fourth Proportional to 72,440,285.70, 108,665,677.35 and 43,624,373.70
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Solution
The fourth proportional to 72,440,285.70, 108,665,677.35 and 43,624,373.70 is: 65,439,721.44
Step by Step Solution
- Step 1: Write the proportion equation
72,440,285.70 : 108,665,677.35 = 43,624,373.70 : x - Step 2: Convert to fraction form
72,440,285.70/108,665,677.35 = 43,624,373.70/x - Step 3: Cross multiply
72,440,285.70x = 108,665,677.35 × 43,624,373.70 - Step 4: Simplify right side
72,440,285.70x = 4,740,472,117,080,026 - Step 5: Solve for x
x = 4,740,472,117,080,026/72,440,285.70 - Step 6: Final answer
x = 65,439,721.44
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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.