Finding the Fourth Proportional to 456,239,646.18, 684,086,170.92 and 145,212,915.06
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Solution
The fourth proportional to 456,239,646.18, 684,086,170.92 and 145,212,915.06 is: 217,732,386.62
Step by Step Solution
- Step 1: Write the proportion equation
456,239,646.18 : 684,086,170.92 = 145,212,915.06 : x - Step 2: Convert to fraction form
456,239,646.18/684,086,170.92 = 145,212,915.06/x - Step 3: Cross multiply
456,239,646.18x = 684,086,170.92 × 145,212,915.06 - Step 4: Simplify right side
456,239,646.18x = 99,338,147,031,526,592 - Step 5: Solve for x
x = 99,338,147,031,526,592/456,239,646.18 - Step 6: Final answer
x = 217,732,386.62
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1.5x scale
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.