Finding the Fourth Proportional to 454,108,847.20, 681,163,270.80 and 310,781,615.20
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Solution
The fourth proportional to 454,108,847.20, 681,163,270.80 and 310,781,615.20 is: 466,172,422.80
Step by Step Solution
- Step 1: Write the proportion equation
454,108,847.20 : 681,163,270.80 = 310,781,615.20 : x - Step 2: Convert to fraction form
454,108,847.20/681,163,270.80 = 310,781,615.20/x - Step 3: Cross multiply
454,108,847.20x = 681,163,270.80 × 310,781,615.20 - Step 4: Simplify right side
454,108,847.20x = 211,693,021,514,138,976 - Step 5: Solve for x
x = 211,693,021,514,138,976/454,108,847.20 - Step 6: Final answer
x = 466,172,422.80
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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.