Finding the Fourth Proportional to 19,926,072.30, 29,889,108.45 and 18,130,982.70
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Solution
The fourth proportional to 19,926,072.30, 29,889,108.45 and 18,130,982.70 is: 27,196,474.05
Step by Step Solution
- Step 1: Write the proportion equation
19,926,072.30 : 29,889,108.45 = 18,130,982.70 : x - Step 2: Convert to fraction form
19,926,072.30/29,889,108.45 = 18,130,982.70/x - Step 3: Cross multiply
19,926,072.30x = 29,889,108.45 × 18,130,982.70 - Step 4: Simplify right side
19,926,072.30x = 541,918,908,225,373.75 - Step 5: Solve for x
x = 541,918,908,225,373.75/19,926,072.30 - Step 6: Final answer
x = 27,196,474.05
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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.