Finding the Fourth Proportional to 522,730,137.35, 721,341,641.97 and 287,775,753.28
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Solution
The fourth proportional to 522,730,137.35, 721,341,641.97 and 287,775,753.28 is: 397,116,254.75
Step by Step Solution
- Step 1: Write the proportion equation
522,730,137.35 : 721,341,641.97 = 287,775,753.28 : x - Step 2: Convert to fraction form
522,730,137.35/721,341,641.97 = 287,775,753.28/x - Step 3: Cross multiply
522,730,137.35x = 721,341,641.97 × 287,775,753.28 - Step 4: Simplify right side
522,730,137.35x = 207,584,634,388,345,440 - Step 5: Solve for x
x = 207,584,634,388,345,440/522,730,137.35 - Step 6: Final answer
x = 397,116,254.75
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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.