Finding the Fourth Proportional to 5,128,130.16, 7,069,894.29 and 3,289,396.55
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Solution
The fourth proportional to 5,128,130.16, 7,069,894.29 and 3,289,396.55 is: 4,534,925.04
Step by Step Solution
- Step 1: Write the proportion equation
5,128,130.16 : 7,069,894.29 = 3,289,396.55 : x - Step 2: Convert to fraction form
5,128,130.16/7,069,894.29 = 3,289,396.55/x - Step 3: Cross multiply
5,128,130.16x = 7,069,894.29 × 3,289,396.55 - Step 4: Simplify right side
5,128,130.16x = 23,255,685,851,041.23 - Step 5: Solve for x
x = 23,255,685,851,041.23/5,128,130.16 - Step 6: Final answer
x = 4,534,925.04
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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.