Finding the Fourth Proportional to 203,698,915.59, 305,570,239.35 and 87,126,378.48
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Solution
The fourth proportional to 203,698,915.59, 305,570,239.35 and 87,126,378.48 is: 130,698,920.26
Step by Step Solution
- Step 1: Write the proportion equation
203,698,915.59 : 305,570,239.35 = 87,126,378.48 : x - Step 2: Convert to fraction form
203,698,915.59/305,570,239.35 = 87,126,378.48/x - Step 3: Cross multiply
203,698,915.59x = 305,570,239.35 × 87,126,378.48 - Step 4: Simplify right side
203,698,915.59x = 26,623,228,325,832,292 - Step 5: Solve for x
x = 26,623,228,325,832,292/203,698,915.59 - Step 6: Final answer
x = 130,698,920.26
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.