Finding the Fourth Proportional to 113,541,955.13, 156,687,961.04 and 61,330,991.09
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Solution
The fourth proportional to 113,541,955.13, 156,687,961.04 and 61,330,991.09 is: 84,636,801.71
Step by Step Solution
- Step 1: Write the proportion equation
113,541,955.13 : 156,687,961.04 = 61,330,991.09 : x - Step 2: Convert to fraction form
113,541,955.13/156,687,961.04 = 61,330,991.09/x - Step 3: Cross multiply
113,541,955.13x = 156,687,961.04 × 61,330,991.09 - Step 4: Simplify right side
113,541,955.13x = 9,609,827,941,364,412 - Step 5: Solve for x
x = 9,609,827,941,364,412/113,541,955.13 - Step 6: Final answer
x = 84,636,801.71
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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.