Finding the Fourth Proportional to 7,820,656.93, 10,790,480.24 and 4,720,730.23
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Solution
The fourth proportional to 7,820,656.93, 10,790,480.24 and 4,720,730.23 is: 6,513,384.58
Step by Step Solution
- Step 1: Write the proportion equation
7,820,656.93 : 10,790,480.24 = 4,720,730.23 : x - Step 2: Convert to fraction form
7,820,656.93/10,790,480.24 = 4,720,730.23/x - Step 3: Cross multiply
7,820,656.93x = 10,790,480.24 × 4,720,730.23 - Step 4: Simplify right side
7,820,656.93x = 50,938,946,241,582.01 - Step 5: Solve for x
x = 50,938,946,241,582.01/7,820,656.93 - Step 6: Final answer
x = 6,513,384.58
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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.