Finding the Fourth Proportional to 19,658,657.80, 29,487,986.70 and 17,603,752.60
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Solution
The fourth proportional to 19,658,657.80, 29,487,986.70 and 17,603,752.60 is: 26,405,628.90
Step by Step Solution
- Step 1: Write the proportion equation
19,658,657.80 : 29,487,986.70 = 17,603,752.60 : x - Step 2: Convert to fraction form
19,658,657.80/29,487,986.70 = 17,603,752.60/x - Step 3: Cross multiply
19,658,657.80x = 29,487,986.70 × 17,603,752.60 - Step 4: Simplify right side
19,658,657.80x = 519,099,222,538,890.44 - Step 5: Solve for x
x = 519,099,222,538,890.44/19,658,657.80 - Step 6: Final answer
x = 26,405,628.90
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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.