Finding the Fourth Proportional to 330,129,307.80, 495,193,961.70 and 284,779,675.80
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Solution
The fourth proportional to 330,129,307.80, 495,193,961.70 and 284,779,675.80 is: 427,169,513.70
Step by Step Solution
- Step 1: Write the proportion equation
330,129,307.80 : 495,193,961.70 = 284,779,675.80 : x - Step 2: Convert to fraction form
330,129,307.80/495,193,961.70 = 284,779,675.80/x - Step 3: Cross multiply
330,129,307.80x = 495,193,961.70 × 284,779,675.80 - Step 4: Simplify right side
330,129,307.80x = 141,021,175,871,043,616 - Step 5: Solve for x
x = 141,021,175,871,043,616/330,129,307.80 - Step 6: Final answer
x = 427,169,513.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.