Finding the Fourth Proportional to 28,160,276.76, 38,861,197.74 and 15,283,220.76
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Solution
The fourth proportional to 28,160,276.76, 38,861,197.74 and 15,283,220.76 is: 21,090,853.23
Step by Step Solution
- Step 1: Write the proportion equation
28,160,276.76 : 38,861,197.74 = 15,283,220.76 : x - Step 2: Convert to fraction form
28,160,276.76/38,861,197.74 = 15,283,220.76/x - Step 3: Cross multiply
28,160,276.76x = 38,861,197.74 × 15,283,220.76 - Step 4: Simplify right side
28,160,276.76x = 593,924,264,058,433.12 - Step 5: Solve for x
x = 593,924,264,058,433.12/28,160,276.76 - Step 6: Final answer
x = 21,090,853.23
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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.