Finding the Fourth Proportional to 307,029,372.10, 423,905,052.70 and 181,621,855.50
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Solution
The fourth proportional to 307,029,372.10, 423,905,052.70 and 181,621,855.50 is: 250,759,143.01
Step by Step Solution
- Step 1: Write the proportion equation
307,029,372.10 : 423,905,052.70 = 181,621,855.50 : x - Step 2: Convert to fraction form
307,029,372.10/423,905,052.70 = 181,621,855.50/x - Step 3: Cross multiply
307,029,372.10x = 423,905,052.70 × 181,621,855.50 - Step 4: Simplify right side
307,029,372.10x = 76,990,422,227,199,280 - Step 5: Solve for x
x = 76,990,422,227,199,280/307,029,372.10 - Step 6: Final answer
x = 250,759,143.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.