Finding the Fourth Proportional to 10,785,445.13, 14,874,056.81 and 8,430,953.93
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Solution
The fourth proportional to 10,785,445.13, 14,874,056.81 and 8,430,953.93 is: 11,627,010.87
Step by Step Solution
- Step 1: Write the proportion equation
10,785,445.13 : 14,874,056.81 = 8,430,953.93 : x - Step 2: Convert to fraction form
10,785,445.13/14,874,056.81 = 8,430,953.93/x - Step 3: Cross multiply
10,785,445.13x = 14,874,056.81 × 8,430,953.93 - Step 4: Simplify right side
10,785,445.13x = 125,402,487,712,343.12 - Step 5: Solve for x
x = 125,402,487,712,343.12/10,785,445.13 - Step 6: Final answer
x = 11,627,010.87
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1.5x scale
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.