Finding the Fourth Proportional to 19,806,735.60, 29,710,103.40 and 8,290,212.30
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Solution
The fourth proportional to 19,806,735.60, 29,710,103.40 and 8,290,212.30 is: 12,435,318.45
Step by Step Solution
- Step 1: Write the proportion equation
19,806,735.60 : 29,710,103.40 = 8,290,212.30 : x - Step 2: Convert to fraction form
19,806,735.60/29,710,103.40 = 8,290,212.30/x - Step 3: Cross multiply
19,806,735.60x = 29,710,103.40 × 8,290,212.30 - Step 4: Simplify right side
19,806,735.60x = 246,303,064,640,951.81 - Step 5: Solve for x
x = 246,303,064,640,951.81/19,806,735.60 - Step 6: Final answer
x = 12,435,318.45
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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.