Finding the Fourth Proportional to 15,438,840.79, 23,153,382.70 and 5,201,314.99
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Solution
The fourth proportional to 15,438,840.79, 23,153,382.70 and 5,201,314.99 is: 7,800,328.93
Step by Step Solution
- Step 1: Write the proportion equation
15,438,840.79 : 23,153,382.70 = 5,201,314.99 : x - Step 2: Convert to fraction form
15,438,840.79/23,153,382.70 = 5,201,314.99/x - Step 3: Cross multiply
15,438,840.79x = 23,153,382.70 × 5,201,314.99 - Step 4: Simplify right side
15,438,840.79x = 120,428,036,435,829.94 - Step 5: Solve for x
x = 120,428,036,435,829.94/15,438,840.79 - Step 6: Final answer
x = 7,800,328.93
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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.