Finding the Fourth Proportional to 6,678,985.20, 9,217,017.12 and 3,623,199.45
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Solution
The fourth proportional to 6,678,985.20, 9,217,017.12 and 3,623,199.45 is: 5,000,024.76
Step by Step Solution
- Step 1: Write the proportion equation
6,678,985.20 : 9,217,017.12 = 3,623,199.45 : x - Step 2: Convert to fraction form
6,678,985.20/9,217,017.12 = 3,623,199.45/x - Step 3: Cross multiply
6,678,985.20x = 9,217,017.12 × 3,623,199.45 - Step 4: Simplify right side
6,678,985.20x = 33,395,091,373,809.13 - Step 5: Solve for x
x = 33,395,091,373,809.13/6,678,985.20 - Step 6: Final answer
x = 5,000,024.76
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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.