Finding the Fourth Proportional to 863,138,851.70, 1,294,708,277.55 and 857,092,234.10
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Solution
The fourth proportional to 863,138,851.70, 1,294,708,277.55 and 857,092,234.10 is: 1,285,638,351.15
Step by Step Solution
- Step 1: Write the proportion equation
863,138,851.70 : 1,294,708,277.55 = 857,092,234.10 : x - Step 2: Convert to fraction form
863,138,851.70/1,294,708,277.55 = 857,092,234.10/x - Step 3: Cross multiply
863,138,851.70x = 1,294,708,277.55 × 857,092,234.10 - Step 4: Simplify right side
863,138,851.70x = 1,109,684,410,113,092,352 - Step 5: Solve for x
x = 1,109,684,410,113,092,352/863,138,851.70 - Step 6: Final answer
x = 1,285,638,351.15
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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.