Finding the Fourth Proportional to 1,473,058,849.80, 2,209,907,139.30 and 438,024,358.20
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Solution
The fourth proportional to 1,473,058,849.80, 2,209,907,139.30 and 438,024,358.20 is: 657,131,353.92
Step by Step Solution
- Step 1: Write the proportion equation
1,473,058,849.80 : 2,209,907,139.30 = 438,024,358.20 : x - Step 2: Convert to fraction form
1,473,058,849.80/2,209,907,139.30 = 438,024,358.20/x - Step 3: Cross multiply
1,473,058,849.80x = 2,209,907,139.30 × 438,024,358.20 - Step 4: Simplify right side
1,473,058,849.80x = 967,993,156,373,480,576 - Step 5: Solve for x
x = 967,993,156,373,480,576/1,473,058,849.80 - Step 6: Final answer
x = 657,131,353.92
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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.