Finding the Fourth Proportional to 400,823,903.80, 601,235,855.70 and 247,768,895.80
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Solution
The fourth proportional to 400,823,903.80, 601,235,855.70 and 247,768,895.80 is: 371,653,343.70
Step by Step Solution
- Step 1: Write the proportion equation
400,823,903.80 : 601,235,855.70 = 247,768,895.80 : x - Step 2: Convert to fraction form
400,823,903.80/601,235,855.70 = 247,768,895.80/x - Step 3: Cross multiply
400,823,903.80x = 601,235,855.70 × 247,768,895.80 - Step 4: Simplify right side
400,823,903.80x = 148,967,544,082,157,152 - Step 5: Solve for x
x = 148,967,544,082,157,152/400,823,903.80 - Step 6: Final answer
x = 371,653,343.70
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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.