Finding the Fourth Proportional to 1,375,497,646.20, 2,063,246,469.30 and 885,721,620.60
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Solution
The fourth proportional to 1,375,497,646.20, 2,063,246,469.30 and 885,721,620.60 is: 1,328,582,430.90
Step by Step Solution
- Step 1: Write the proportion equation
1,375,497,646.20 : 2,063,246,469.30 = 885,721,620.60 : x - Step 2: Convert to fraction form
1,375,497,646.20/2,063,246,469.30 = 885,721,620.60/x - Step 3: Cross multiply
1,375,497,646.20x = 2,063,246,469.30 × 885,721,620.60 - Step 4: Simplify right side
1,375,497,646.20x = 1,827,462,006,485,624,064 - Step 5: Solve for x
x = 1,827,462,006,485,624,064/1,375,497,646.20 - Step 6: Final answer
x = 1,328,582,430.90
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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.