Finding the Fourth Proportional to 38,267,278.64, 52,808,829.36 and 20,863,638.08
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Solution
The fourth proportional to 38,267,278.64, 52,808,829.36 and 20,863,638.08 is: 28,791,812.28
Step by Step Solution
- Step 1: Write the proportion equation
38,267,278.64 : 52,808,829.36 = 20,863,638.08 : x - Step 2: Convert to fraction form
38,267,278.64/52,808,829.36 = 20,863,638.08/x - Step 3: Cross multiply
38,267,278.64x = 52,808,829.36 × 20,863,638.08 - Step 4: Simplify right side
38,267,278.64x = 1,101,784,303,195,517.88 - Step 5: Solve for x
x = 1,101,784,303,195,517.88/38,267,278.64 - Step 6: Final answer
x = 28,791,812.28
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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.