Finding the Fourth Proportional to 236,918,000.40, 355,586,952.60 and 139,752,214.80
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Solution
The fourth proportional to 236,918,000.40, 355,586,952.60 and 139,752,214.80 is: 209,752,167.82
Step by Step Solution
- Step 1: Write the proportion equation
236,918,000.40 : 355,586,952.60 = 139,752,214.80 : x - Step 2: Convert to fraction form
236,918,000.40/355,586,952.60 = 139,752,214.80/x - Step 3: Cross multiply
236,918,000.40x = 355,586,952.60 × 139,752,214.80 - Step 4: Simplify right side
236,918,000.40x = 49,694,064,179,832,624 - Step 5: Solve for x
x = 49,694,064,179,832,624/236,918,000.40 - Step 6: Final answer
x = 209,752,167.82
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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.