Finding the Fourth Proportional to 8,085,656.70, 12,128,485.05 and 5,806,365.30
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Solution
The fourth proportional to 8,085,656.70, 12,128,485.05 and 5,806,365.30 is: 8,709,547.95
Step by Step Solution
- Step 1: Write the proportion equation
8,085,656.70 : 12,128,485.05 = 5,806,365.30 : x - Step 2: Convert to fraction form
8,085,656.70/12,128,485.05 = 5,806,365.30/x - Step 3: Cross multiply
8,085,656.70x = 12,128,485.05 × 5,806,365.30 - Step 4: Simplify right side
8,085,656.70x = 70,422,414,735,888.77 - Step 5: Solve for x
x = 70,422,414,735,888.77/8,085,656.70 - Step 6: Final answer
x = 8,709,547.95
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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.