Finding the Fourth Proportional to 448,495,280.70, 672,742,921.05 and 327,562,928.70
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Solution
The fourth proportional to 448,495,280.70, 672,742,921.05 and 327,562,928.70 is: 491,344,393.05
Step by Step Solution
- Step 1: Write the proportion equation
448,495,280.70 : 672,742,921.05 = 327,562,928.70 : x - Step 2: Convert to fraction form
448,495,280.70/672,742,921.05 = 327,562,928.70/x - Step 3: Cross multiply
448,495,280.70x = 672,742,921.05 × 327,562,928.70 - Step 4: Simplify right side
448,495,280.70x = 220,365,641,481,330,848 - Step 5: Solve for x
x = 220,365,641,481,330,848/448,495,280.70 - Step 6: Final answer
x = 491,344,393.05
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1.5x scale
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.