Finding the Fourth Proportional to 203,215,774.19, 280,415,277.72 and 112,686,988.84
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Solution
The fourth proportional to 203,215,774.19, 280,415,277.72 and 112,686,988.84 is: 155,495,573.10
Step by Step Solution
- Step 1: Write the proportion equation
203,215,774.19 : 280,415,277.72 = 112,686,988.84 : x - Step 2: Convert to fraction form
203,215,774.19/280,415,277.72 = 112,686,988.84/x - Step 3: Cross multiply
203,215,774.19x = 280,415,277.72 × 112,686,988.84 - Step 4: Simplify right side
203,215,774.19x = 31,599,153,270,298,108 - Step 5: Solve for x
x = 31,599,153,270,298,108/203,215,774.19 - Step 6: Final answer
x = 155,495,573.10
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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.