Finding the Fourth Proportional to 8,287,268.70, 12,430,903.05 and 4,242,412.20
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Solution
The fourth proportional to 8,287,268.70, 12,430,903.05 and 4,242,412.20 is: 6,363,618.30
Step by Step Solution
- Step 1: Write the proportion equation
8,287,268.70 : 12,430,903.05 = 4,242,412.20 : x - Step 2: Convert to fraction form
8,287,268.70/12,430,903.05 = 4,242,412.20/x - Step 3: Cross multiply
8,287,268.70x = 12,430,903.05 × 4,242,412.20 - Step 4: Simplify right side
8,287,268.70x = 52,737,014,756,337.22 - Step 5: Solve for x
x = 52,737,014,756,337.22/8,287,268.70 - Step 6: Final answer
x = 6,363,618.30
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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.