Finding the Fourth Proportional to 547,567,345.68, 821,352,418.56 and 138,623,539.92
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Solution
The fourth proportional to 547,567,345.68, 821,352,418.56 and 138,623,539.92 is: 207,935,664.32
Step by Step Solution
- Step 1: Write the proportion equation
547,567,345.68 : 821,352,418.56 = 138,623,539.92 : x - Step 2: Convert to fraction form
547,567,345.68/821,352,418.56 = 138,623,539.92/x - Step 3: Cross multiply
547,567,345.68x = 821,352,418.56 × 138,623,539.92 - Step 4: Simplify right side
547,567,345.68x = 113,858,779,782,640,688 - Step 5: Solve for x
x = 113,858,779,782,640,688/547,567,345.68 - Step 6: Final answer
x = 207,935,664.32
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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.