Finding the Fourth Proportional to 1,133,786,299.20, 1,700,679,468.16 and 272,143,291.20
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Solution
The fourth proportional to 1,133,786,299.20, 1,700,679,468.16 and 272,143,291.20 is: 408,214,941.45
Step by Step Solution
- Step 1: Write the proportion equation
1,133,786,299.20 : 1,700,679,468.16 = 272,143,291.20 : x - Step 2: Convert to fraction form
1,133,786,299.20/1,700,679,468.16 = 272,143,291.20/x - Step 3: Cross multiply
1,133,786,299.20x = 1,700,679,468.16 × 272,143,291.20 - Step 4: Simplify right side
1,133,786,299.20x = 462,828,507,741,328,000 - Step 5: Solve for x
x = 462,828,507,741,328,000/1,133,786,299.20 - Step 6: Final answer
x = 408,214,941.45
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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.