Finding the Fourth Proportional to 11,312,457.81, 16,968,721.55 and 2,792,795.19
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Solution
The fourth proportional to 11,312,457.81, 16,968,721.55 and 2,792,795.19 is: 4,189,201.38
Step by Step Solution
- Step 1: Write the proportion equation
11,312,457.81 : 16,968,721.55 = 2,792,795.19 : x - Step 2: Convert to fraction form
11,312,457.81/16,968,721.55 = 2,792,795.19/x - Step 3: Cross multiply
11,312,457.81x = 16,968,721.55 × 2,792,795.19 - Step 4: Simplify right side
11,312,457.81x = 47,390,163,911,325.38 - Step 5: Solve for x
x = 47,390,163,911,325.38/11,312,457.81 - Step 6: Final answer
x = 4,189,201.38
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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.