Finding the Fourth Proportional to 189,688,081.36, 261,768,524.16 and 106,056,195.52
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Solution
The fourth proportional to 189,688,081.36, 261,768,524.16 and 106,056,195.52 is: 146,356,974.99
Step by Step Solution
- Step 1: Write the proportion equation
189,688,081.36 : 261,768,524.16 = 106,056,195.52 : x - Step 2: Convert to fraction form
189,688,081.36/261,768,524.16 = 106,056,195.52/x - Step 3: Cross multiply
189,688,081.36x = 261,768,524.16 × 106,056,195.52 - Step 4: Simplify right side
189,688,081.36x = 27,762,173,779,294,804 - Step 5: Solve for x
x = 27,762,173,779,294,804/189,688,081.36 - Step 6: Final answer
x = 146,356,974.99
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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.