Finding the Fourth Proportional to 28,828,683.04, 39,783,585.16 and 15,775,941.28
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Solution
The fourth proportional to 28,828,683.04, 39,783,585.16 and 15,775,941.28 is: 21,770,800.37
Step by Step Solution
- Step 1: Write the proportion equation
28,828,683.04 : 39,783,585.16 = 15,775,941.28 : x - Step 2: Convert to fraction form
28,828,683.04/39,783,585.16 = 15,775,941.28/x - Step 3: Cross multiply
28,828,683.04x = 39,783,585.16 × 15,775,941.28 - Step 4: Simplify right side
28,828,683.04x = 627,623,503,392,039.38 - Step 5: Solve for x
x = 627,623,503,392,039.38/28,828,683.04 - Step 6: Final answer
x = 21,770,800.37
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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.