Finding the Fourth Proportional to 153,693,432.26, 212,098,610.55 and 84,077,318.46
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Solution
The fourth proportional to 153,693,432.26, 212,098,610.55 and 84,077,318.46 is: 116,027,615.25
Step by Step Solution
- Step 1: Write the proportion equation
153,693,432.26 : 212,098,610.55 = 84,077,318.46 : x - Step 2: Convert to fraction form
153,693,432.26/212,098,610.55 = 84,077,318.46/x - Step 3: Cross multiply
153,693,432.26x = 212,098,610.55 × 84,077,318.46 - Step 4: Simplify right side
153,693,432.26x = 17,832,682,424,531,130 - Step 5: Solve for x
x = 17,832,682,424,531,130/153,693,432.26 - Step 6: Final answer
x = 116,027,615.25
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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.