Finding the Fourth Proportional to 688,477,583.27, 950,102,282.37 and 391,136,141.37
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Solution
The fourth proportional to 688,477,583.27, 950,102,282.37 and 391,136,141.37 is: 539,769,702.99
Step by Step Solution
- Step 1: Write the proportion equation
688,477,583.27 : 950,102,282.37 = 391,136,141.37 : x - Step 2: Convert to fraction form
688,477,583.27/950,102,282.37 = 391,136,141.37/x - Step 3: Cross multiply
688,477,583.27x = 950,102,282.37 × 391,136,141.37 - Step 4: Simplify right side
688,477,583.27x = 371,619,340,638,061,568 - Step 5: Solve for x
x = 371,619,340,638,061,568/688,477,583.27 - Step 6: Final answer
x = 539,769,702.99
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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.