Finding the Fourth Proportional to 7,815,407.97, 10,781,295.21 and 5,332,766.58
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Solution
The fourth proportional to 7,815,407.97, 10,781,295.21 and 5,332,766.58 is: 7,356,510.50
Step by Step Solution
- Step 1: Write the proportion equation
7,815,407.97 : 10,781,295.21 = 5,332,766.58 : x - Step 2: Convert to fraction form
7,815,407.97/10,781,295.21 = 5,332,766.58/x - Step 3: Cross multiply
7,815,407.97x = 10,781,295.21 × 5,332,766.58 - Step 4: Simplify right side
7,815,407.97x = 57,494,130,785,002.09 - Step 5: Solve for x
x = 57,494,130,785,002.09/7,815,407.97 - Step 6: Final answer
x = 7,356,510.50
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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.