Finding the Fourth Proportional to 210,702,951.40, 290,781,355.62 and 117,877,924.84
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Solution
The fourth proportional to 210,702,951.40, 290,781,355.62 and 117,877,924.84 is: 162,677,848.39
Step by Step Solution
- Step 1: Write the proportion equation
210,702,951.40 : 290,781,355.62 = 117,877,924.84 : x - Step 2: Convert to fraction form
210,702,951.40/290,781,355.62 = 117,877,924.84/x - Step 3: Cross multiply
210,702,951.40x = 290,781,355.62 × 117,877,924.84 - Step 4: Simplify right side
210,702,951.40x = 34,276,702,782,647,672 - Step 5: Solve for x
x = 34,276,702,782,647,672/210,702,951.40 - Step 6: Final answer
x = 162,677,848.39
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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.