Finding the Fourth Proportional to 189,564,564.60, 284,346,846.90 and 155,127,187.80
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Solution
The fourth proportional to 189,564,564.60, 284,346,846.90 and 155,127,187.80 is: 232,690,781.70
Step by Step Solution
- Step 1: Write the proportion equation
189,564,564.60 : 284,346,846.90 = 155,127,187.80 : x - Step 2: Convert to fraction form
189,564,564.60/284,346,846.90 = 155,127,187.80/x - Step 3: Cross multiply
189,564,564.60x = 284,346,846.90 × 155,127,187.80 - Step 4: Simplify right side
189,564,564.60x = 44,109,926,719,394,144 - Step 5: Solve for x
x = 44,109,926,719,394,144/189,564,564.60 - Step 6: Final answer
x = 232,690,781.70
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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.