Finding the Fourth Proportional to 13,365,866.19, 18,441,733.95 and 7,564,647.99
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Solution
The fourth proportional to 13,365,866.19, 18,441,733.95 and 7,564,647.99 is: 10,437,424.98
Step by Step Solution
- Step 1: Write the proportion equation
13,365,866.19 : 18,441,733.95 = 7,564,647.99 : x - Step 2: Convert to fraction form
13,365,866.19/18,441,733.95 = 7,564,647.99/x - Step 3: Cross multiply
13,365,866.19x = 18,441,733.95 × 7,564,647.99 - Step 4: Simplify right side
13,365,866.19x = 139,505,225,656,982.27 - Step 5: Solve for x
x = 139,505,225,656,982.27/13,365,866.19 - Step 6: Final answer
x = 10,437,424.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.