Finding the Fourth Proportional to 7,648,829.20, 11,473,243.80 and 6,417,110.80
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Solution
The fourth proportional to 7,648,829.20, 11,473,243.80 and 6,417,110.80 is: 9,625,666.20
Step by Step Solution
- Step 1: Write the proportion equation
7,648,829.20 : 11,473,243.80 = 6,417,110.80 : x - Step 2: Convert to fraction form
7,648,829.20/11,473,243.80 = 6,417,110.80/x - Step 3: Cross multiply
7,648,829.20x = 11,473,243.80 × 6,417,110.80 - Step 4: Simplify right side
7,648,829.20x = 73,625,076,700,013.05 - Step 5: Solve for x
x = 73,625,076,700,013.05/7,648,829.20 - Step 6: Final answer
x = 9,625,666.20
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1.5x scale
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.