Finding the Fourth Proportional to 317,905,228.96, 476,880,543.86 and 84,734,719.54
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Solution
The fourth proportional to 317,905,228.96, 476,880,543.86 and 84,734,719.54 is: 127,108,129.90
Step by Step Solution
- Step 1: Write the proportion equation
317,905,228.96 : 476,880,543.86 = 84,734,719.54 : x - Step 2: Convert to fraction form
317,905,228.96/476,880,543.86 = 84,734,719.54/x - Step 3: Cross multiply
317,905,228.96x = 476,880,543.86 × 84,734,719.54 - Step 4: Simplify right side
317,905,228.96x = 40,408,339,138,059,776 - Step 5: Solve for x
x = 40,408,339,138,059,776/317,905,228.96 - Step 6: Final answer
x = 127,108,129.90
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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.