Finding the Fourth Proportional to 1,375,497,647.20, 2,063,246,470.80 and 885,721,621.60
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Solution
The fourth proportional to 1,375,497,647.20, 2,063,246,470.80 and 885,721,621.60 is: 1,328,582,432.40
Step by Step Solution
- Step 1: Write the proportion equation
1,375,497,647.20 : 2,063,246,470.80 = 885,721,621.60 : x - Step 2: Convert to fraction form
1,375,497,647.20/2,063,246,470.80 = 885,721,621.60/x - Step 3: Cross multiply
1,375,497,647.20x = 2,063,246,470.80 × 885,721,621.60 - Step 4: Simplify right side
1,375,497,647.20x = 1,827,462,009,877,453,056 - Step 5: Solve for x
x = 1,827,462,009,877,453,056/1,375,497,647.20 - Step 6: Final answer
x = 1,328,582,432.40
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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.