Finding the Fourth Proportional to 330,785,280.90, 496,177,921.35 and 279,129,215.70
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Solution
The fourth proportional to 330,785,280.90, 496,177,921.35 and 279,129,215.70 is: 418,693,823.55
Step by Step Solution
- Step 1: Write the proportion equation
330,785,280.90 : 496,177,921.35 = 279,129,215.70 : x - Step 2: Convert to fraction form
330,785,280.90/496,177,921.35 = 279,129,215.70/x - Step 3: Cross multiply
330,785,280.90x = 496,177,921.35 × 279,129,215.70 - Step 4: Simplify right side
330,785,280.90x = 138,497,754,034,081,792 - Step 5: Solve for x
x = 138,497,754,034,081,792/330,785,280.90 - Step 6: Final answer
x = 418,693,823.55
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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.