Finding the Fourth Proportional to 5,709,117.72, 7,878,765.06 and 3,130,792.41
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Solution
The fourth proportional to 5,709,117.72, 7,878,765.06 and 3,130,792.41 is: 4,320,593.66
Step by Step Solution
- Step 1: Write the proportion equation
5,709,117.72 : 7,878,765.06 = 3,130,792.41 : x - Step 2: Convert to fraction form
5,709,117.72/7,878,765.06 = 3,130,792.41/x - Step 3: Cross multiply
5,709,117.72x = 7,878,765.06 × 3,130,792.41 - Step 4: Simplify right side
5,709,117.72x = 24,666,777,850,021.20 - Step 5: Solve for x
x = 24,666,777,850,021.20/5,709,117.72 - Step 6: Final answer
x = 4,320,593.66
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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.