Finding the Fourth Proportional to 10,220,742.71, 15,341,747.75 and 7,528,108.31
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Solution
The fourth proportional to 10,220,742.71, 15,341,747.75 and 7,528,108.31 is: 11,299,994.73
Step by Step Solution
- Step 1: Write the proportion equation
10,220,742.71 : 15,341,747.75 = 7,528,108.31 : x - Step 2: Convert to fraction form
10,220,742.71/15,341,747.75 = 7,528,108.31/x - Step 3: Cross multiply
10,220,742.71x = 15,341,747.75 × 7,528,108.31 - Step 4: Simplify right side
10,220,742.71x = 115,494,338,726,698.80 - Step 5: Solve for x
x = 115,494,338,726,698.80/10,220,742.71 - Step 6: Final answer
x = 11,299,994.73
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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.