Finding the Fourth Proportional to 560,080,217.68, 772,890,439.62 and 309,179,220.64
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Solution
The fourth proportional to 560,080,217.68, 772,890,439.62 and 309,179,220.64 is: 426,656,139.99
Step by Step Solution
- Step 1: Write the proportion equation
560,080,217.68 : 772,890,439.62 = 309,179,220.64 : x - Step 2: Convert to fraction form
560,080,217.68/772,890,439.62 = 309,179,220.64/x - Step 3: Cross multiply
560,080,217.68x = 772,890,439.62 × 309,179,220.64 - Step 4: Simplify right side
560,080,217.68x = 238,961,663,761,818,560 - Step 5: Solve for x
x = 238,961,663,761,818,560/560,080,217.68 - Step 6: Final answer
x = 426,656,139.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.