Finding the Fourth Proportional to 19,583,983.80, 29,375,975.70 and 8,220,655.80
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Solution
The fourth proportional to 19,583,983.80, 29,375,975.70 and 8,220,655.80 is: 12,330,983.70
Step by Step Solution
- Step 1: Write the proportion equation
19,583,983.80 : 29,375,975.70 = 8,220,655.80 : x - Step 2: Convert to fraction form
19,583,983.80/29,375,975.70 = 8,220,655.80/x - Step 3: Cross multiply
19,583,983.80x = 29,375,975.70 × 8,220,655.80 - Step 4: Simplify right side
19,583,983.80x = 241,489,785,018,864.06 - Step 5: Solve for x
x = 241,489,785,018,864.06/19,583,983.80 - Step 6: Final answer
x = 12,330,983.70
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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.