Finding the Fourth Proportional to 5,658,425.80, 8,487,638.70 and 3,418,937.80
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Solution
The fourth proportional to 5,658,425.80, 8,487,638.70 and 3,418,937.80 is: 5,128,406.70
Step by Step Solution
- Step 1: Write the proportion equation
5,658,425.80 : 8,487,638.70 = 3,418,937.80 : x - Step 2: Convert to fraction form
5,658,425.80/8,487,638.70 = 3,418,937.80/x - Step 3: Cross multiply
5,658,425.80x = 8,487,638.70 × 3,418,937.80 - Step 4: Simplify right side
5,658,425.80x = 29,018,708,784,172.86 - Step 5: Solve for x
x = 29,018,708,784,172.86/5,658,425.80 - Step 6: Final answer
x = 5,128,406.70
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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.