Finding the Fourth Proportional to 19,473,401.80, 29,210,102.70 and 5,289,977.80
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Solution
The fourth proportional to 19,473,401.80, 29,210,102.70 and 5,289,977.80 is: 7,934,966.70
Step by Step Solution
- Step 1: Write the proportion equation
19,473,401.80 : 29,210,102.70 = 5,289,977.80 : x - Step 2: Convert to fraction form
19,473,401.80/29,210,102.70 = 5,289,977.80/x - Step 3: Cross multiply
19,473,401.80x = 29,210,102.70 × 5,289,977.80 - Step 4: Simplify right side
19,473,401.80x = 154,520,794,818,720.06 - Step 5: Solve for x
x = 154,520,794,818,720.06/19,473,401.80 - Step 6: Final answer
x = 7,934,966.70
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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.